Colorado Field Ornithologists

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CFO is a non-profit, volunteer organization devoted to the study, conservation, and enjoyment of Colorado's birds    Join/Renew    Gift Membership
1 Jan 2009 Rufous-crowned Sparrow, Tunnel Drive, Freemont County

© Glenn Walbek

Columns from Colorado Birds

"In the Scope" is a regular column by Tony Leukering and occasional guest authors on identification challenges, featuring color photos on the journal's back cover.

In the Scope: Hybridization Among Aechmophorus Grebes and IMplications for Identification    Steven G. Mlodinow and Tony Leukering    Colorado Birds: Oct 2018  52(3)

The Hungry Bird: European Earwig    David Leatherman    Colorado Birds: Oct 2018  52(3)

In The Scope: Mergansers: Identification, ageing, and sexing    Tony Leukering    Colorado Birds: Jul 2018  52(2)

Northern Flicker ID: A Caution about Intergrades, Part I    Leukering, Tony    Colorado Birds: Oct 2017  51(4)

1 2 3 4 5 6 7 8 9 10  ... 


"The Hungry Bird" is a regular column by Dave Leatherman on what birds eat. An understanding of diet brings birding skills to the next level, helping to predict when and where birds will occur, and what they will be doing.

The Hungry Bird: European Earwig    David Leatherman    Colorado Birds: Oct 2018  52(3)

The Hungry Bird: Possible Fly Food of Golden-crowned Warbler at Mitchek Ranch    David Leatherman    Colorado Birds: Jul 2018  52(2)

Many-lined Skink    Leatherman, Dave    Colorado Birds: Oct 2017  51(4)

Sapsucking Woodpeckers Not Named "Sapsucker"    Leatherman, Dave    Colorado Birds: Jul 2017  51(3)

1 2 3 4 5 6 7 8 9 

Colorado Birds Archives

since 1967
Logged-in members may click on the cover image to read the journal issue

Colorado Birds archives are available from 1967 forward. Access to the most recent issues is limited to CFO members. Researchers may also be interested in the index of articles for issues printed 1967 - 2000. The journals are filed by decade, year, and quarterly issue. Click on the appropriate decade file folder below to find your desired issue.

Members may login to have access to recent issues
   

Viewing the folder JournalArchives

Folder/IssueTypeSize
 1967-1969

File folder
 1970-1979

File folder
 1980-1989

File folder
 1990-1999

File folder
 2000-2009

File folder
 2010-2019

File folder

Other Archived Documents

DocumentTypeSize
Birds_in_Western_Colorado_by_William_A._Davis_1969.pdf

PDF file 1,130 KB
CFO_Newsletter_No._1_November_1,_1970.pdf

PDF file 219 KB
CFO_Newsletter_No._2_January_1,_1971.pdf

PDF file 269 KB
CFO_Newsletter_No._3_March_1,_1971.pdf

PDF file 416 KB
CFO_Newsletter_No._4_May_1,_1971.pdf

PDF file 444 KB
Colorado_Bird_Distribution_Latilong_Study_1988.pdf

PDF file 1,913 KB
Lair_o_the_Bear_-_Mike_Foster_-_51-2_-_CORRECTED.pdf

PDF file 101 KB

Connect With Us

Mailing Address

Colorado Field Ornithologists
P.O. Box 1568
Loveland, CO 80539



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Quick Links

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Our Mission

Colorado Field Ornithologists (CFO) is a non-profit, volunteer organization devoted to the study, conservation, and enjoyment of Colorado's birds. We are looking for bird enthusiasts just like you!

We are a statewide organization open to anyone interested in birds, including recreational birders and professional ornithologists. The diversity of our members' interests creates a dynamic organization and offers learning opportunities for all.

© 2019 Colorado Field Ornithologists. All rights reserved.
Many thanks to Tom Wilberding for the use of his photos!
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