Colorado Field Notes



"Colorado Field Notes" is a monthly ebook publication
of the Colorado Birding Society.

Each Month's Issue includes articles relevant to that
month's birding around Colorado.

NOTE: "Colorado Field Notes" is now in PDF format.
This allows more computers and operating systems to read
the issues. In addition the PDF files are searchable and
can be copied. They can also put on mobile devices and
carried into the field.

Also included:
Recent photos of birds observed in Colorado.
That Month's Uncommon Bird Sightings.
Next Month's Colorado Statewide Bird Trips.

Because of the ebook format, Bird Sightings
can be updated even in past issues.

NOTE: issues are no longer in ebook format.
We still update issues with late additions of records.

NOTE: You can still request "Colorado Field Notes" on a disk.
However, issues are now downloadable at a reduced cost.


EXAMPLE:

Example of Colorado Field Notes
Example Cover of Field Notes (Looks like a real book)



Example of Colorado Field Notes
Photos of birds, locations, birders!


Example of Colorado Field Notes
Articles on birds, locations, etc.
NOTE: This is not a real article; for example only.



Example of Colorado Field Notes
Uncommon bird reports for each month.

Changes in 2014-2015 subscriptions:

We offer two options:
1. Download a copy of "Colorado Field Notes" from the internet each month.
Subscription is $12/year
(All Subscriptions start at first of year.
Subscribing anytime during the year, you receive that years issues.)

2. Continue to receive disks each month
Subscription is $30/year
(Our costs are about $44/year per subscription on disk and postage is going up on January 24th/2013).

Please send check or money order to:

Colorado Birding Society
P.O. Box 440813
Aurora, CO 80044

Please include telephone number and email address if you have one.
If we need to contact you, snail mail is slooooooow.

For further information contact Sue Ehlmann:
sueehlmann@juno.com

Individual Copies of "Colorado Field Notes" upon request.
Send $6.00 and any two Months you desire to above address.
We will include 3 copies of the official Colorado State Bird Checklist

Past Articles in "Colorado Field Notes"

Guide to Birding Locations 2006-2015 (four volumes) December, 2015

A Few Tricky Bird Identifications November, p. 45   yr: 2015
A Young Birders Trip to CO July, p. 77   yr: 2010
ABA Recording Rules December, p. 65   yr: 2007
Adams County Parks and Open Spaces November, p. 7   yr: 2015
Additional gallinaceous birds April, p. 57   yr: 2017
Ageing American Kestrels April, p. 70   yr: 2017
Ageing Snowy Owls March, p. 82   yr: 2012
Ageing Snowy Owls February, p. 166   yr: 2010
Aging, Sexing and Molt of Birds May, p. 37   yr: 2017
Aiken Canyon Nature Preserve May, p. 7   yr: 2017
Akron Pond June, p. 7   yr: 2015
Alamosa & Monte Vista National Wildlife Refuge October, p7   yr: 2013
Alder verses Willow Flycatcher June, p. 29   yr: 2015
Alder verses Willow Flycatcher June, p. 47   yr: 2008
American Tree verses Chipping Sparrows February, p. 53   yr: 2008
Ammodramus Sparrows August, p. 23   yr: 2015
Ammodramus Sparrows November, p. 25   yr: 2012
Animas River Trail April, p. 27   yr: 2017
AOU Proposed Changes for 2016, p. 97   yr: 2016
AOU Checklist Changes August, p. 53   yr: 2012
AOU Checklist Changes August, p. 51   yr: 2011
AOU Checklist Changes September, p. 87   yr: 2007
Apishapa Wildlife Area February, p. 7   yr: 2012
American Three-toed Woodpecker Foraging September, p. 85   yr: 2017
Arapahoe County Reservoirs December, p.7   yr: 2016
Arapaho National Wildlife Refuge September, p. 7   yr: 2013
Archilochus Hummingbirds September, p. 29   yr: 2013
Archilochus Hummingbirds June, p. 81   yr: 2012
Arctic & Pacific Loons November, p. 33   yr: 2009
Arkansas Riverwalk May, p. 105   yr: 2007
Aurora Reservoir Revisited January, p.7   yr: 2014
Aurora Reservoir November, p. 45   yr: 2006
Bad For Birds, Bad For All December, p. 147   yr: 2014
Bald Eagles February, p. 7   yr: 2008
Banding Codes October, p. 92   yr: 2013
Band-tailed Pigeons January, p. 32   yr: 2007
Banner Lakes Wildlife Area March, p. 7   yr: 2010
Barr Lake Periphery May, p. 7   yr: 2016
Barrow's Goldeneye Count December, p. 69   yr: 2013
Barrow's Goldeneye Count December, p. 103   yr: 2012
Barrow's Goldeneye Count Update January, p. 49   yr: 2012
Barrow's Goldeneye Count December, p. 107   yr: 2011
Baseline Reservoir December, p. 7   yr: 2012
Basic Plumage Horned Verses Eared Grebes November, p.59   yr: 2016
Bats In Colorado February, p. 110   yr: 2012
Bear Creek Greenbelt April, p. 7   yr: 2015
Bear Creek Lake Park October, p. 7   yr: 2012
Bear Creek Park July, p. 7   yr: 2015
Beaver Creek Wildlife Area February, p. 7   yr: 2014
Belmar Historic Park May, p.19  yr: 2006
Benefits of Harvested Clearings September, p.52   yr: 2013
Beware in Our National Forests September, p. 89   yr: 2009
Beware of Expections December, p. 87   yr: 2011
Bible and Hutchinson Parks Jaunary, p. 7   yr: 2017
BiCentennial Park February, p. 32   yr: 2006
Big Johnson Reservoir September, p. 7   yr: 2012
Bird Banding A Case Against January, p. 63   yr: 2011
Bird Banding Codes August, p. 84   yr: 2007
Bird Banter January, p. 27   yr: 2006
Bird Evolution and Diversification November, p. 69   yr: 2012
Bird Extinctions July, p. 29   yr: 2014
Bird Evolutionary Tree of Life July, p. 22   yr: 2008
Bird Feeding Favors Exotic Birds April, p.53   yr: 2016
Birds and the Eclipse September, p. 63   yr: 2017
Birds Flying In Formations March, p. 91   yr: 2014
Bird Migration November p. 109   yr: 2009
Bird Migration and Radar October, p. 91   yr: 2011
Bird Migration and Radar Follow Up November, p. 92   yr: 2011
Bird Migration Vocalizations October, p. 69   yr: 2011
Birds Changing Tunes September, p. 95   yr: 2011
Birds Choose Good Nuts February, p. 75   yr: 2016
Birds On Drugs November, p. 69   yr: 2015
Bird Pair Identification July, p. 23   yr: 2006
Birds, Radar and Other Tools November, p. 64   yr: 2012
Bird Sighting Documentation January, p. 69   yr: 2011
Birds Sing Higher In Traffic September, p.91   yr: 2011
Bird Songs Related to Human Speech July, p. 41   yr: 2015
Bird Songs Part 1 Shorebirds August, p. 165   yr: 2010
Bird Tracks and Sign January, p. 63   yr: 2009
Bird Vision February, p.31   yr: 2014
Birds Choosing Nesting Material May, p.86   yr: 2015br
Birders Contributions August, p. 107   yr: 2009
Birders Observation verses Collecting December, p. 145   yr: 2014
Birding Along Eastern Boulder County February, p. 35   yr: 2008
Birding Around Gould March, p. 137   yr: 2011
Birding Around Rifle May, p. 7   yr: 2012
Birding Southcentral Colorado July, p. 21   yr: 2007
Birding Around Sterling November, p. 7   yr: 2011
Birding In The Mountains November, p. 7   yr: 2016
Bitterns and dark Herons August, p. 5   yr: 2009
Black chinned Sparrow May, p. 117   yr: 2011
Black Phoebe X Eastern Phoebe July, p. 43   yr: 2017
Black Swifts "Coolest Birds", July, p. 27   yr: 2011
Blue Grouse Attack June, p. 5   yr: 2006
Blue Grouse Split December, p. 23   yr: 2006
Blue Mesa Reservoir May, p. 7   yr: 2013
Bluff Lake Nature Area May, p. 9  yr: 2006
Bobcat Ridge Natural Area February, p. 7   yr: 2015
Boulder Reservoirs and Lakes December, p. 5   yr: 2008
Boulder Stub-tailed Wren February, p. 47   yr: 2014
Box Canyon Falls, July, p. 7   yr: 2011
Box Elder Creek at WCR 4 February, p. 29   yr: 2017
Brown Booby October, p. 55   yr: 2016
Buffalo Pass Routt and Jackson Counties September, p. 7   yr: 2017
California Condors in Colorado July, p.35   yr: 2015
California Condors, November, p. 53   yr: 2014
Carpodacus Finches November, p. 37   yr: 2014
Cassin's Kingbird Range Expansion July, p. 75   yr: 2016
Castlewood Canyon Point Counts July, p. 27   yr: 2008
Castlewood Canyon State Park September, p.5   yr: 2007
Catharus Thrushes June, p 53   yr: 2010
Centennial Park, November, p. 7   yr: 2012
Certainty in Sight Records December, p. 31   yr: 2007
Change in AOU Counting Rules November, p. 71   yr: 2014
Changes to AOU Checklist 2015 September, p. 53   yr: 2015
Changes to AOU Checklist August, p. 172   yr: 2010
Chatfield State Park January, p. 5   yr: 2009
Cheesman Reservoir August, p. 6   yr: 2008
Cherry Creek State Park September, p. 7   yr: 2014
Cherry Creek State Park March, p. 60   yr: 2007
Cherry Creek Valley October, p. 5   yr: 2010
Cherry Creek Valley Ecological Park March, p. 7   yr: 2014
Cheyenne Mountain Park November, p. 32   yr: 2006
Chico Basin Ranch April, p. 78   yr: 2007
Chihuahuan Ravens Boulder Cty December, p. 38   yr: 2007
Christmas County December, p. 106   yr: 2011
Christmas Counts January, p. 62   yr: 2008
Cicada In Colorado May, p. 80   yr: 2016
Cited Observers of Colorado Birds January, p. 155   yr: 2011
Cited Observers of Colorado Birds January, p. 245   yr: 2010
Cited Observers of Colorado Birds January, p. 171   yr: 2009
Cited Observers of Colorado Birds January, p. 123   yr: 2008
Cited Observers of Colorado Birds December, p. 297   yr: 2008
Cited Observers of Colorado Birds January, p. 57   yr: 2006
Cited Observers of Colorado Birds December, p.   yr: 2006
Clear Creek Valley Park July, p. 29   yr: 2017
Climate Change and Birds February, p. 95   yr: 2012
Climate Change & Birds October, p. 31   yr: 2007
Coal Creek Canyon June, p. 32   yr: 2010
CoBus Christmas Counts February, p. 140   yr: 2017
Colorado's First Cactus Wren May, p. 31   yr: 2010
Colorado Barrow's Goldeneye Count December, p. 75   yr: 2007
Colorado Bird Records Board July, p. 26   yr: 2014
Colorado Christmas Counts March, p. 89   yr: 2008
Colorado Flooding and Birds October, p. 89   yr: 2013
Colorado Habitat Stamp January, p. 17   yr: 2008
Colorado Home to Many Warblers July, p. 37   yr: 2006
Colorado Jaeger Sightings October, p. 61   yr: 2015
Colorado National Monument July, p. 18   yr: 2006
Colorado Nesting Forms July, p. 37   yr: 2014
Colorado Nesting Study July, p. 36   yr: 2010
Colorado Passes September, p. 5   yr: 2008
Colorado Springs Sapsucker February, p. 51   yr: 2008
Colorado Bird Checklists September, p. 69   yr: 2016
Colorado Wrens May, p. 32   yr: 2010
Colorado's 500th Bird Species August, p. 90   yr: 2014
Colorful County Names November, p. 25   yr: 2007
Columbine Open Space August, p. 51   yr: 2016
Condors In Arizona October, p. 113   yr: 2011
Connected Lakes State Park June, p. 7   yr: 2012
Cottonwood Canyon December, p. 7   yr: 2011
County First Records January, p. 102   yr: 2015
Cover Photo, N. Mockingbirds in Winter February, p. 5   yr: 2008
Cowbird Parasitic Behavior October, p. 107   yr: 2008
Crow Valley Campgrounds October, p. 5   yr: 2007
Cuckoos August, p. 31   yr: 2012
Cuckoos In Colorado October, p. 63   yr: 2009
Cuckoos In Egg Pattern Arms Race August, 48   yr: 2015
Curve-billed Thrashers November, p. 47   yr: 2010
Dark eyed Juncos March, p. 37   yr: 2010
Dark-eyed Juncos Revisited December, p. 111   yr: 2008
Dark-eyed Junco Identification February, p. 22   yr: 2006
Dawson Butte Open Space August, p. 8   yr: 2016
Dickcissel Nesting In Arapahoe County August, p. 67   yr: 2016
Difficulty of Swan Identification November, p. 85   yr: 2016
Deadly Hazards To Birds November, p. 113   yr: 2011
Decline and Fall of Songbirds October, p. 15   yr: 2008
deKoevand Park and Wildlife Area April, p.27   yr: 2014
Denver City Park Long-tailed Duck March, p. 31   yr: 2012
Departure Migration Dates October, p.33   yr: 2016
DeWeese Reservoir August, p. 7   yr: 2012
DIA Owl Loop March, p.7   yr: 2017
DIA Owl Loop & Barr Lake April, p. 44   yr: 2006
Dickcissel Range Expansion July, p. 65   yr: 2016
Dinosaur Ridge Hawkwatch April, p. 5   yr: 2010
Directions to Grouse Locations March, p. 47   yr: 2017
Dixon Reservoir, Birding Hotspot September, p. 112   yr: 2007
Douglas County Open Spaces August, p. 7   yr: 2016
Early Spring Migration Dates March, p. 93   yr: 2017
Early Spring Arrival Dates 2016 February, p. 65   yr: 2016
Eastern Boulder County February, p. 35   yr: 2008
Eastern Metro and Aurora Parks January p. 7   yr: 2015
Eastern Phoebe Nesting in Adams County August, p. 63   yr: 2016
eBirds Uses or Nor December, p. 113   yr: 2016
Eclipse Plumages of Ducks August, p. 116   yr: 2008
Eldorado Mountain Open Space July, p. 5   yr: 2008
Elevation Preferences in Warblers June, p. 65   yr: 2013
Elliott Coues Ornithologist July, p. 26   yr: 2009
Emerald Strand Park December, p. 13   yr: 2006
Emmaline Lake September, p. 33   yr: 2017
Empidonax Flycatchers September, p. 37   yr: 2012
Empidonax Flycatchers June, p. 22   yr: 2006
Escalante Canyon May, p. 10   yr: 2008
Eurasian Collared-dove Invasion April, p. 27   yr: 2008
Excel Power Plant February, p. 31   yr: 2007
Exploring Colorado Birds May, p. 92   yr: 2015
Extinction of Birds September, p. 99   yr: 2011
Fall Migration Trends September, p. 71   yr: 2016
Fall Phalaropes In Colorado November, p. 45   yr: 2013
Fall Sprague's Pipit Sightings October, p. 76   yr: 2014
Fall Bird Records September, p. 95   yr: 2014
Falls Counts 2009 October, p. 93   yr: 2009
Fall Warblers September, p. 103   yr: 2016
Fawnbrook Inn, Allenspark March, p. 6   yr: 2008
Female "Pheucticus" Grosbeaks June, p. 29   yr: 2013
Female Teal June, p. 77,   yr: 2017
Field Guide Review August, p. 28   yr: 2011
First Creek Trail June, p. 35   yr: 2016
First Creek Trail Barn Owls August, p. 29   yr: 2017
Fifty Fourth Supplement AOU Checklist August, p. 33   yr: 2013
Fifty Eighth Supplement AOU Checklist August, p. 41   yr: 2017
Finch Forecast 2012-2013 p. 93   yr: 2012
Finding Bird Nests July, p. 61   yr: 2014
Finding Bird Nests July, p. 62   yr: 2010
Finding Black Swifts July, p. 62   yr: 2011
Finding Lesser Prairie-chickens March, p. 84   yr: 2008
Finding Mountain Plovers April, p. 39   yr: 2008
First County Records 2014 February, p. 43   yr: 2014
First Creek Barn Owls August, p. 29   yr: 2017
Fort Logan/Marston Reservoir November, p. 7   yr: 2010
Fountain Creek Regional Park February, p. 5   yr: 2010
Fox Sparrows, November p. 43   yr: 2012
Frank Wildlife Area July, p. 8   yr: 2017
Frenchman Creek Wildlife Area August, p. 7   yr: 2015
Fruitgrower's Reservoir July, p. 6   yr: 2009
Gallinaceous Birds in Colorado May, p. 31   yr: 2013
Galveston Island After Ike October, p. 202   yr: 2008
Generic Approach to Sparrows April, p. 36   yr: 2013
Generic Approach to Sparrows May, p. 53   yr: 2010
Genesee Mountain Park July, p. 7   yr: 2013
Glossy verses White-faced Ibis May, p. 59   yr: 2014
Glossy verses White-faced Ibis June, p. 23   yr: 2008
Glossy verses White-faced Ibis May, p.37   yr: 2012
Golden Ponds February, p. 7   yr: 2011
Goldeneyes February, p. 45   yr: 2009
Grandview Cemetery March, p. 7   yr: 2011
Graneros Gorge, August p. 61   yr: 2011
Gray and Yellow Tyrannus Kingbirds, p. 31   yr: 2015
Gray-brown Thrashers June, p. 95   yr: 2012
Gray-brown Thrashers July, p. 5   yr: 2006
Gray-cheeked Thrushes plus June, p. 35   yr: 2008
Gregory Canyon July, p. 99   yr: 2007
Grouse Trips 2017 March, p. 35   yr: 2017
Grouse Trips 2016 February, p. 7   yr: 2016
Gunnison and Greater Sage-Grouse April, p. 42   yr: 2017
Gunnison County Passes July, p. 7   yr: 2012
Hayden Park at Green Mountain June, p. 35   yr: 2017
Hanging Lake September, p. 82   yr: 2006
Hawthorn Gulch December, p. 25   yr: 2012
Heron Pond Wildlife Refuge October, p. 7   yr: 2015
Hidden Bird Migrations, DNA September, p.113   yr: 2014
Hidden Lake Open Space January, p. 37   yr: 2017
Highline Lake State Park July, p. 5   yr: 2010
History of Ruffed Grouse Sightings March, p. 48   yr: 2006
Holcim Wetlands April, p. 7   yr: 2014
Holyoke Birding Areas September, p. 7   yr: 2015
Hoping for a Murrelet Sighting October, p. 93   yr: 2015
Horned Larks Revisited January, p. 99   yr: 2010
Horned Larks January, p. 33   yr: 2008
Horned Grebe Verses Eared Grebe April, p.33   yr: 2016
Horned Verses Eared Grebes October, p. 39   yr: 2012
How Birds Became Red July, p. 81   yr: 2016
How Do Birds Avoid Obstacles May, p. 88   yr: 2015br
How Raptors Use Talons January, p. 95   yr: 2010
Hummingbirds in Colorado Revisited August, p. 37   yr: 2014
Hummingbirds ID Revisited September, p. 37   yr: 2011
Hummingbirds ID and Quiz September, p. 41   yr: 2008
Hummingbirds in Colorado August, p. 99   yr: 2007
Hummingbird Numbers August, p. 48   yr: 2017
Hummingbird Quiz July, p. 23   yr: 2013
Hybrid Bird Migration August, p. 98   yr: 2014
Hybrids and Intergrades July, p. 35   yr: 2017
Hybridization Archilochus Hummingbirds June, p. 109   yr: 2012
Hybridization between Glossy and White-faced Ibis May, p. 67   yr: 2014
Hybridization In Gallinaceous Birds March, p. 108   yr: 2016
Hybridization In Night Herons July, p. 101   yr: 2011
Hybridization of White-faced and Glossy Ibis May, p. 35   yr: 2012
Iceland Verses Thayer's Gulls February, p. 73,   yr: 2013
Idalia Park June, p. 57   yr: 2016
ID Ducks With Wing Plumage December, p. 25   yr: 2008
ID White cheeked Geese January, p. 14   yr: 2006
Identification of Dowitchers May, p. 69   yr: 2011
Identification of Dowitchers September, p. 5   yr: 2006
If I Wanted To Find An Owl March, p. 77   yr: 2012
If I Wanted To Find An Owl March, p. 210   yr: 2011
Interpretations of Recording Rules January, p. 151   yr: 2017
Invasion of Eurasian Collared-Doves April, p. 71   yr: 2015
Ivory billed Woodpecker February, p. 113   yr: 2012
Jackson County Lakes May, p. 5   yr: 2010
Jackson Lake State Park February, p. 5   yr: 2009
Jaegers Revisited October, p. 73   yr: 2016
Jaegers Revisited October, p. 95   yr: 2014
Jaegers Identification, October, p. 29   yr: 2011
Jerry Creek Reservoirs, April, p. 7   yr: 2013
Jim Hamm Park and Union Reservoir April, p. 6   yr: 2008
John James Canyon June, p. 7   yr: 2014
John Martin Reservoir June, p. 9   yr: 2011
Juvenile "Sphyrapicus" Sapsuckers March, p. 41   yr: 2013
Juvenile Shorebirds September, p. 24   yr: 2007
Kansas Lesser Prairie-Chickens April, p. 5   yr: 2009
Kingbirds September, p. 55   yr: 2012
Kodak Watchable Wildlife Area July, p. 23   yr: 2017
Lair O' Bear Park December, p. 5   yr: 2007
Lake Cheraw May, p. 7   yr: 2011
Lake County Birding December, p. 5   yr: 2009
Lake Dorothey/James M John Wildlife Area September, p. 7   yr: 2016
Lake Estes Bird Sanctuary June, p. 5   yr: 2009
Lake Pueblo State Park February, p. 5   yr: 2007
LakeCrest December, p.13   yr: 2006
Large Terns August, p. 27   yr: 2012
Larimer County Landfill February, p. 7   yr: 2017
Larimer Weld Gull Loop March, p. 83   yr: 2016
Late Departure Dates September, p. 95   yr: 2017
Last Chance Rest Stop October, p. 7   yr: 2011
Lathrop State Park January, p. 7   yr: 2011
Lazuli Bunting X Indigo Buntings July, p. 51   yr: 2017
Lesser Nighthawk in CO May, p. 45   yr: 2010
Lesser Prairie-Chicken Status July, p. 21   yr: 2013
Lesser Prairie-Chicken Status June, p. 93   yr: 2011
Lesser Prairie Chickens April, 89   yr: 2010
Lewis's Woodpeckers in Colorado Update November, p. 45   yr: 2014
Lewis's Woodpeckers in Colorado September, p. 87   yr: 2014
Liberty Point, Pueblo Reservoir August, p.25   yr: 2014
Lincoln Mountain Open Space August, p. 19   yr: 2016
Local Parks & Lakes May, p. 10   yr: 2006
Long-billed Thrashers March, p. 8   yr: 2006
Long Day On South Mesa Trail April, p. 5   yr: 2007
Longmont Waterthrush May, p. 6   yr: 2008
Loon Identification January p. 84   yr: 2015
Loon Quiz January p. 99   yr: 2015
Lory State Park August, p. 61   yr: 2007
Loveland Pass, Birding Site of the Month January, p. 5   yr: 2008
Lowell Ponds Wildlife Area June, p. 7  yr: 2017
Lowell Ponds Wildlife Area May p. 13  yr: 2006
Lower Latham Reservoir August, p. 7   yr: 2010
Mallard Group March, p. 111   yr: 2011
Magnificent Frigtebird July, p. 17   yr: 2013
Marjorie Perry Nature Preserve June, p. 7   yr: 2016
McIntosh Lake September, p. 5   yr: 2010
McPhee and Narriquinep Reservoirs March, p. 7 2012
Metro Open Spaces December, p. 7   yr: 2014
Migrant Birds Add Color May, p. 25   yr: 2006
Migratory Bird Treaty Act April, p. 75   yr: 2012
Migrating Scoters In Colorado November, p. 49   yr: 2016
Migrating Scoters In Colorado November, p. 53   yr: 2013
Migration of Birds November, p. 50   yr: 2008
Migration Taught By Older Birds February, p. 101   yr: 2015
Migration Trends November, p. 53   yr: 2010
Molt/Plumage Terminology/Ptarmigan November, p. 41   yr: 2007
More Stub-tailed Wrens February, p. 69   yr: 2015
Morgan County Birding January, p. 5   yr: 2010
Morlan Method of Gull Identification December, p.57   yr: 2016
Morlan Method of Gull Identification December, p.39   yr: 2009
Mountain Chickadees Species or Subspecies June, p. 29   yr: 2014
Mountain Pine Beetle September, p. 74   yr: 2009
Mountain Plover Status June, p. 89   yr: 2011
Mt Evans Byway August, p. 5   yr: 2007
Mt. Falcon Park October, p. 13   yr: 2006
Murrelets In Colorado October p. 101   yr: 2016
Navajo Reservoir & Watchable Wildlife Area, December p. 7   yr: 2011
Nighthawks In Colorado June, p. 77   yr: 2016
North Sterling Reservoir September, p. 7   yr: 2011
Northeast Larimer County September, p. 7   yr: 2009
Northestern Dolores County August, p. 7   yr: 2017
Northern Flickers in Colorado January, p.80   yr: 2016
Northern Harriers June, p. 47   yr: 2014
North Sterling Reservoir September, p. 7   yr: 2011
November 2013 Warblers December, p. 71   yr: 2013
Old Bent's Fort June, p. 51   yr: 2011
One Redpoll to Rule All January, p. 75   yr: 2016
Orient Land Trust and Bat Cave September, p. 31   yr: 2016
Otero County Reservoirs October, p. 5   yr: 2008
Owl Mystery May, p. 60   yr: 2013
Owls Found In Colorado February, p. 47   yr: 2017
Owls Found in Colorado February, p. 7   yr: 2013
Owls Found in Colorado Revisited March, p. 37   yr: 2012
Owls Found In Colorado April, p. 5   yr: 2006
Owls In Colorado March, p. 43   yr: 2015
Owls In Colorado April, p. 43   yr: 2014
Owls In Colorado March, p. 71   yr: 2011
Owls In Colorado Revisited March, p. 7   yr: 2016
Owls Revisited April, p. 47   yr: 2010
Owl Pellets February, p. 123   yr: 2017
Pacific slope Verses Cordilleran Flycatchers September, p. 61   yr: 2016
Park County Passes October, p. 7   yr: 2014
Park County Reservoirs September, p. 109   yr: 2017
Park County Reservoirs Revisited November, p. 7   yr: 2014
Park County Reservoirs November, p. 46   yr: 2007
Phantom Canyon Shelf Road Loop March, p. 7   yr: 2013
Phillips County Shorebirds September, p. 93   yr: 2009
Picketwire Canyonlands January, p. 7   yr: 2012
Picture Canyon April, p. 103   yr: 2011
Picoides Woodpeckers September, p. 67   yr: 2017
Picoides Woodpeckers August, p. 35   yr: 2012
Picture Canyon April, p. 103   yr: 2011
Playback Recordings June, p. 39   yr: 2014
Possible Baird's Sparrow Nesting in Larimer County August, p. 71   yr: 2016
Poudre River Wildlife Areas July, p. 7   yr: 2017
Prairie Chickesn May, p. 39   yr: 2014
Prewitt Reservoir November, p. 6   yr: 2009
Principles of Birding Ethics December, p. 61   yr: 2007
Proper Use of Playback July, p. 45   yr: 2015
Proposed Northern Cardinal Split March, p. 109   yr: 2015
Pueblo Mountain Park August, p. 7   yr: 2014
Purple Sandpiper New State Record January, p. 49   yr: 2017
Quincy Reservoir May, p. 7   yr: 2015
Ralson Creek Bobolinks July, p. 41   yr: 2016
Raptor Trails April, p. 7   yr: 2011
Raptor Habitat Selection August, p. 52   yr: 2013
Raptor Routes East of Denver January, p. 7   yr: 2016
Raptor Silhouettes April, p. 25   yr: 2015
Raptor Silhouettes April, p. 25   yr: 2011
Raptor Silhouettes January, p. 49   yr: 2010
Raptor Trails April, p. 7   yr: 2011
Ravens and Crows January, p. 61   yr: 2012
Ravens and Crows February, p. 21   yr: 2007
Recent Grebes at Cherry Creek November, p. 69   yr: 2006
Recent Owl Sightings 2017 February, p. 113   yr: 2017
Recent Owl Sightings 2016 March, p. 73   yr: 2016
Recent Owl Sightings 2014 April, p. 109   yr: 2014
Recording Bird Flights April, p. 52   yr: 2009
Recording Bird Night Flights September, p. 87   yr: 2006
Red Crossbills in Colorado April, p. 19   yr: 2009
Red Crossbill Complex March, p.5   yr: 2007
Red Crossbills Revisited February, p. 29   yr: 2015
Redpolls January, p. 23   yr: 2013
Redpoll Quiz January, p. 135   yr: 2016
Redpolls, All you want to know January, p. 39   yr: 2016
Reynolds Park August, p. 7   yr: 2013
Rivers Edge Natural Area February, p. 17   yr: 2017
Riverside Cemetery October, p. 31   yr: 2015
Rocky Ford Doves May, p. 111   yr: 2007
Rocky Mountain Arsenal Meadowlark July, p. 49   yr: 2016
Rocky Mountain Arsenal November, p. 5   yr: 2007
Rocky Mountain Arsenal Trails October, p.7   yr: 2017
Rocky Mountain National Park August, p. 27   yr: 2009
Rosy Finches Revisited January, p. 55   yr: 2017
Rosy Finches February, p. 35   yr: 2011
Rosy Finches in Colorado January, p. 35   yr: 2009
Rosy Finches In Colorado February, p. 11   yr: 2006
Route 80, Route County June, p. 5   yr: 2010
Roxborough State Park July, p. 7   yr: 2016
Ruff or Reeve June, p. 17   yr: 2008
Rufous collared Sparrow June, p. 93   yr: 2011
Sage Sparrow Split August, p. 37   yr: 2013
Sale Lake June, p. 5   yr: 2008
San Miguel County Reservoirs April, 7   yr: 2012
Sand Canyon July, p. 7   yr: 2014
Sand Creek February, p. 35   yr: 2017
Sands Lake Wildlife Area January, p. 45,   yr: 2017
Sandhill Crane Distribution November, p. 73   yr: 2007
Sandhill Cranes November, p. 25   yr: 2011
Sandhill Species October, p. 31   yr: 2013
Sandhill Cranes in the San Luis Valley April, p. 129   yr: 2014
Sapsucker ID Challenge April, p. 87   yr: 2015
Scoters, Migrating November, p. 96   yr: 2009
Scoters Visiting Colorado November, p. 37   yr: 2006
Self Guiding Grouse Tour 2013 March, p. 61   yr: 2013
Self Guiding Grouse Tour February, p. 35   yr: 2012
Self Guiding Grouse Tour March, p. 25   yr: 2011
Self Guiding Grouse Tour March, p. 51   yr: 2010
Self-guiding Grouse Tour March, p. 28   yr: 2009
Self-guiding Grouse Tour March, p. 41   yr: 2008
Self Guiding Grouse/Chicken Tour March, p. 33   yr: 2007
Separation of Meadowlarks September, p. 43   yr: 2015
Separation of Swans November, p.5   yr: 2006
Separating Medium sized Terns October, p. 113   yr: 2017
Sex of Tufted Duck February, p. 31   yr: 2011
Sexing European Starlings May, p. 47   yr: 2017
Sexing Falcons May, p. 57   yr: 2013
Sexing Meadowlarks May, p. 66   yr: 2017
Shift in Bird Populations March, p. 72   yr: 2009
Shikes, November p. 55   yr: 2012
Shutting Down Pest Insects September, p. 51   yr: 2013
Shop For Songbirds February, p. 59   yr: 2009
Shorebird Calls May, p. 34   yr: 2011
Shorebirds August, p. 55   yr: 2010
Shorebirds Revisited April, p. 25   yr: 2007
Silhouette Approach to Shorebirds May, p. 52   yr: 2016
Sihouettes Shorebirds May, p. 22   yr: 2011
Silhouettes Shorebird ID October, p. 33   yr: 2006
Small Plovers in Colorado May, p. 5   yr: 2006
Snow Buntings in Colorado January p. 35   yr: 2015
Snowy Owl Irruption Update April 83 p. 83   yr: 2012
Snowy Owl Irruption Update February, p. 97   yr: 2012
Snowy Owl Irruption Update January, p. 51   yr: 2012
Snowy Owl Irruption December, p. 83   yr: 2011
So, You Want to Be a Birder October, p. 29   yr: 2006
Solitary Vireo Complex May, p. 69   yr: 2015
Solitary Vireo Complex September, p. 235   yr: 2012
Solitary Vireo Complex June, p. 69   yr: 2010
Some Confusing Fall Warblers October, p. 89   yr: 2017
Sooty Tern October, p. 13   yr: 2008
South Mesa Trails April, p. 5   yr: 2007
South Platte Park January, p. 21   yr: 2006
South Platte Reservoir January, p. 7   yr: 2013
South Platte River Corridor February, p. 86   yr: 2010
Southwest Metro Denver Area Reservoirs April, p. 7   yr: 2016
Sparrow Identification, Part 1 March, p. 51   yr: 2006
Sparrow Identification, Part 2 May, p. 28   yr: 2006
Spelling Rules for Bird Names August, p. 76   yr: 2007
Spotted Thrush Complex June, p. 12   yr: 2006
Sprague's Pipits Updated November, p. 41   yr: 2016
Sprague's Pipits October, p. 44   yr: 2015
Sprague's Pipits Revisited October, p. 73   yr: 2012
Sprague's Pipits In Colorado September, p. 106   yr: 2011
Sprague's Pipits In Colorado October, p. 67   yr: 2010
Sprague's Pipits In Colorado October, p. 71   yr: 2009
Sprague's Pipits December, p.5   yr: 2006
Spring Counts June, p. 51   yr: 2008
Spring Migration Dates March, p.63   yr: 2017
Spring Migration Records February, p. 36   yr: 2016
Spring Warblers Underparts April, p. 26   yr: 2012
Spruce Meadows trails August, p. 31   yr: 2016
Spruce Mountain trails August, p. 39   yr: 2016
Standardized English Bird Names August, p. 75   yr: 2007
Standley Lake November, p. 6   yr: 2008
Star K Ranch Open Space March, p. 25   yr: 2007
State of Birds April, 159   yr: 2010
State of Colorado Bird Checklist February, p. 69   yr: 2016
Strange Behavior in Cuckoos August, p. 43   yr: 2015
Strange Ducks In Colorado April, p. 25   yr: 2013
Streptopelia Doves in Colorado April, p. 119   yr: 2014
Study of Goldeneyes January, p. 39   yr: 2007
Study of Mergansers January, p. 47   yr: 2007
Study of Scaups January, p. 43   yr: 2007
Subspecies of Redpolls January, p. 57   yr: 2016
Subspecies of White-cheeked Geese January p. 109   yr: 2017
Subspecies of White-cheeked Geese January p. 41   yr: 2015
Summary of 2012 Grouse Trips June, p. 31   yr: 2012
Summer Hummers and Others September, p. 67   yr: 2006
Swainson's Hawks verses Buteos June, 87   yr: 2016
Swallow Flight Speeds September, p. 53   yr: 2017
Swallows in Colorado May, p. 64   yr: 2016
Swallows July, p. 35   yr: 2009
Swans In Colorado December, p. 29   yr: 2013
Swan Identification Not So Easy January, p. 73   yr: 2017
Swan Identification Not So Easy December, p. 99   yr: 2014
Swan Identification Revisited November, p. 55   yr: 2011
Swan Identification November, p. 59   yr: 2009
Swan Identification November, p. 23   yr: 2008
Swifts and a Swallow June, p. 35   yr: 2009
Tamarack Ranch Wildlife Area October, p. 5   yr: 2009
Tanagers in Colorado July, p. 5   yr: 2007
Teller City September, p. 61   yr: 2006
Temple Canyon Park June, p. 7   yr: 2013
Ten Most Likely Bird Species Splits April, p. 41   yr: 2016
Thayer's and Iceland Gulls Identification February, p. 91   yr: 2013
Thunder Trails Near Norwood May, p. 25   yr: 2017
The Accipiters January, p. 31   yr: 2011
The Migratory Connectivity Project July, p. 53   yr: 2015
The Scaup Dilemma February, p. 129   yr: 2017
The Tribune Yellow-crowned Night-Heron July, p. 93   yr: 2011
This Winter's Hotspots February, p. 49   yr: 2011
Three-toed Woodpecker Foraging October, p. 57   yr: 2010
Breeding, Tropical Verses Temperate Songbirds September, p. 65   yr: 2015
Two Boulder County Reservoirs (Ish & Terry) December p. 7   yr: 2013
Tyrannus Kingbirds June, p. 47   yr: 2017
Ultra Light Flights Ending February, p. 80   yr: 2016
Update Snowy Owls Colorado Winter March, p. 111   yr: 2012
Updates on Colorado Bird Breeding Atlas IIc August, p. 137   yr: 2008
Updates Spragues Pipits Of Colorado November, p. 35   yr: 2013
USA First Bird Controversy December, p. 89   yr: 2009
Value of Bird Skins March, p. 125   yr: 2011
Van Bibber Park September, p. 27   yr: 2012
Vireos Seen in Colorado September, p. 64   yr: 2012
Vireos Seen in Colorado October, p. 13   yr: 2006
Vultures In Colorado May, p. 75   yr: 2016
Vultures July, p. 49   yr: 2009
Warblers In Fall Plumage September, p. 87   yr: 2012
Warblers Observed in Fall October, p. 45   yr: 2007
Warblers Observed in Spring May, p. 3   yr: 2007
Warembourg Open Space and Pond September, p. 55   yr: 2016
Washington Park Birding January, p. 49   yr: 2009
Warbler Songs and Calls April, p. 49   yr: 2012
Watch List 2007 December, p. 50   yr: 2007
Waterfowl Diving Times March, p. 97   yr: 2017
Waterfowl Identification February, p. 86   yr: 2010
Waterfowl of South Platte River January, p. 7   yr: 2007
Welchester Tree Park June, p. 17   yr: 2006
Weld County Road 37 and 46 Ponds   yr: 2017
Wellington Wildlife Area March, p. 5   yr: 2009
West Magnolia Trail September, p. 45   yr: 2017
West Nile Virus July, p. 70   yr: 2007
Western Gull Chatfield June, p. 100   yr: 2011
What is a Species March, p. 23   yr: 2007
What is happening to Our Birds July, p. 59   yr: 2007
What is in a Name August, p. 69   yr: 2007
When A Snowy Owl Met The Locals March, p. 113   yr: 2012
Where To Find Owls, Colorado March, p. 70   yr: 2012
Where to Find Owls March, p. 103   yr: 2011
Where to Find Owls April, p. 80   yr: 2010
Where To Find Owls, Colorado March, p. 54   yr: 2007
Where to Find Owls In Colorado April, p. 38   yr: 2006
Where to Find Rosy Finches January, p. 69   yr: 2017
Whooping Cranes May, p. 29   yr: 2014
Whip-poor-will Split September, p. 55   yr: 2010
White-breasted Nuthatch Split April, p. 46   yr: 2016
White-cheeked Geese Identification December, p. 41   yr: 2011
White Light Affects Birds September, p. 55   yr: 2015
White-rumped verses Baird's Sandpipers June, p. 105   yr: 2012
White-rumped verses Baird's Sandpipers June, p. 30   yr: 2008
White-winged Crossbills February, p. 57   yr: 2015
White-winged Crossbills April, p. 48   yr: 2009
White-winged Dove Expansion in Colorado November, p. 89   yr: 2008
White Rocks Trail August p. 98   yr: 2009
Why Hummingbirds Nest Near Hawks August, p. 79   yr: 2016
Wild Turkey Subspecies May, p. 43   yr: 2014
Wildfires and Birds October, p. 123   yr: 2017
Willow Creek Park, Centennial September, p. 49   yr: 2016
Winter Birding in Colorado January, p. 5   yr: 2006
Winter Finch Forecast 2016 December, p. 107   yr: 2016
Winter Finch Forecast 2015 October, p.99   yr: 2015
Winter Finch Forecast 2014 December. p. 139   yr: 2014
Winter Finch Forecast 2011 October, p. 57   yr: 2011
Winter Finch Forecast 2010 October, p. 82   yr: 2010
Winter Finch Forecast 2009 October, p. 89   yr: 2010
Winter Finch Forecast October, p. 87   yr: 2009
Winter Loons November, p. 71   yr: 2016
Winter Wren Split February, p. 51   yr: 2014
Winter Wren Split January, p. 77   yr: 2012
Winter Wren Split September, p. 29   yr: 2010
Wintering Loons Migrating In Colorado October, p. 48   yr: 2012
Wintering Loons Visiting Colorado November, p. 56   yr: 2006
Wintering Shrikes In Colorado December p. 21   yr: 2013
Winters Hot Spots 2010 January, p. 175   yr: 2010
Wood Pewee Identification May, p. 37   yr: 2015br
Wood Pewee Id cont. May, p. 59   yr: 2015br
Wood Pewee Field ID June, p. 113   yr: 2011
Wood Pewees June, p. 43   yr: 2010
Worlds Least Known Bird February, p. 185   yr: 2010
Xeno-canto Crowdsourcing World's Bird Songs November, p. 75   yr: 2015
Yellow-bellied Flycatchers and Other Empidonax Species October, p. 65   yr: 2013
Yellow-crowned Night-Heron Update, p. 58   yr: 2011
Yellow-crowned Night-Heron July, p. 95   yr: 2011
Yellow Jacket Canyon May, p. 7   yr: 2014
Yellow-rumped Warbler Intergrades July, p. 36   yr: 2017
Yellow-rumped Warblers Split? October p. 47   yr: 2016
Yuma County Road 45 May, p. 25   yr: 2013

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