[cobirds] F Broad-tailed vs F Black-chinned Hummingbirds

Hi all:

During mid July I was seeing F Broad-tailed Hummingbirds in our yard, feasting on hummingbird trumpt type flowers, and just made the assumption from then on that all Female hummingbirds were just F Broad-tailed. Now I'm seeing F Black-chinned hummingbirds and beginning to wonder if some of those earlier Female hummers included more Black-chinned than I originally thought.

What do other Denver, hummingbird bird watchers think the ratio should be female Broad-taied verses female Black-chhinned ?

Bob Righter
Denver, CO


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[cobirds] Shorebirds at Blanca Wetlands

Shorebirds are finally showing up in the San Luis Valley. I had the following species yesterday:

Am Avocet

Wilson's Phalarope (no RN yet)

Stilt Sandpiper

Western Sppr

Bairds Sppr

Semi-pal Sppr

Snowy Plovers

Spotted Sppr. 

The best assortment was right along the road to North mallard, # 114. 

John Rawinski

Monte Vista, CO

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[cobirds] Kingbird Palooza (Weld County)

My schedule has not allowed as much birding as I used to do, but I was out near Prospect Reservoir today and had 80+ Western Kingbirds within about a 12 mile loop. I have never seen WEKI gather in such numbers, and it seemed like some type of juvenile dispersal (90% of what I saw were juveniles), with a few places having groups of 10-15 birds visible together. A handful of expected shorebirds, as well as several juvenile Cassin's Sparrows, and a sometimes hard to find (and somewhat unexpected for the grassland habitat) Northern Mockingbird were also seen. The border of Prospect Reservoir also annually hosts nesting Orchard Orioles.

Cathy Sheeter
www.cathysheeter.com

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[cobirds] Reminder - BCAS: Summer Stargazing With a Telescope - Joder Ranch, Aug 1

Join Naturalist Dave Sutherland and a large telescope for a free trip through the universe! 

We'll peer into the heart of our galaxy, the Milky Way, to see new stars being born. We'll  look at the "smoke ring" of glowing gas that forms when a star comes to the end of its life. 

Glittering star clusters and colorful double stars thrown in at no extra charge! Bring mosquito repellent and a jacket just in case.

Thursday, August 1, 2024
9:00 PM - 11:00 PM

For more information and to reserve your spot: https://www.boulderaudubon.org/all-events/stargazing-with-telescope-stars-of-a-summer-night

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[cobirds] August 4: First Sunday Bird Watching at Greenlee Wildlife Preserve, Lafayette

Everyone, including beginning birders, are invited to experience the fun and discovery of bird watching at the Greenlee Wildlife Preserve on the first Sunday of each month year-round. Knowledgeable bird watchers will be on hand with binoculars, spotting scopes, and learning tools to assist in the fun activity of identifying birds in their natural habitats.

No RSVP required - drop by anytime between the hours of 1:00 and 3:00 PM. Park in Waneka Lake lot and walk around the lake to Greenlee or park on nearby Waneka Lake Trail.

Be sure to bring water and sunscreen.

For more information on the Aug 4 event: https://www.boulderaudubon.org/all-events/lafayette-birds-first-sunday-bird-watching-august-2024

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Re: [cobirds] BIRD BOMBS: Colorado Plovers Aug 15 at 7 pm

Thank you.

Sent from the all new Aol app for iOS

Buzz Schaumberg 

On Monday, July 29, 2024, 6:45 PM, David Suddjian <dsuddjian@gmail.com> wrote:

 Hi CoBirders,

The video of the latest BIRD BOMBS: Colorado Bird Taxonomy Made Simple is available for viewing, and all 28 prior episodes are in the Denver Field Ornithologists' BIRD BOMBS video library.  All episodes are also now available on DFO's Youtube channel, too!  I welcome feedback on these presentations.

Register now for the next ID explosion, BIRD BOMBS: Colorado Plovers, due to go off on August 15 at 7 pm Mountain time. We;ll explore the identification of Colorado's seven plover species just as we move into the heart of fall shorebird migration.. 

David Suddjian

Littleton, CO

 

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[cobirds] BIRD BOMBS: Colorado Plovers Aug 15 at 7 pm

 Hi CoBirders,

The video of the latest BIRD BOMBS: Colorado Bird Taxonomy Made Simple is available for viewing, and all 28 prior episodes are in the Denver Field Ornithologists' BIRD BOMBS video library.  All episodes are also now available on DFO's Youtube channel, too!  I welcome feedback on these presentations.

Register now for the next ID explosion, BIRD BOMBS: Colorado Plovers, due to go off on August 15 at 7 pm Mountain time. We;ll explore the identification of Colorado's seven plover species just as we move into the heart of fall shorebird migration.. 

David Suddjian

Littleton, CO

 

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[cobirds] CO Chapter of The Wildlife Society - Request for Silent Auction Birding Donations

Hi all,

I hope this finds you well in the birding doldrums of July/August.

I work for CPW and am the President-Elect of Colorado's chapter of The Wildlife Society. We're hosting our annual meeting jointly with the Wyoming chapter in Fort Collins next March, and we usually have a silent auction to benefit the society. I thought it might be nice to auction off a guided birding trip for a small group somewhere in the state. I wanted to see if any of you involved in guiding have any interest in donating your time to help out the society and/or some newbie birders (although I can't guarantee newbies would be the ones to win) who wouldn't have a chance to go on a guided trip otherwise. I know it's a big ask, so no pressure, but anything you're willing to do would be a huge help! 

If anyone has any interest in donating optics, bird feeders, or new/gently used field guides we would graciously accept those as well!

Thanks a bunch and have a lovely summer,
Casey (birding in Larimer County and beyond!)

Casey Setash (She/Her)

Avian Researcher

Phone: 970.657.1303

317 W Prospect Rd. Fort Collins, CO 80526

casey.setash@state.co.us | www.cpw.state.co.us

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[cobirds] Re: Can Magpies save us from Jap Beetles?

"Jap?" 

Seriously? 

Why not Maggie pie? 

Wikipedia: References dating back to Old English call the bird a "pie", derived from the Latin pica and cognate to French pie; this term has fallen out of use.^[6] The magpie was originally variously maggie pie and mag pie.^[7] The term "pica" for the human disorder involving a compulsive desire to eat items that are not food is borrowed from the Latin name of the magpie (Pica pica), for its reputed tendency to feed on miscellaneous things.^[8] 

Sorry for an old-timers sarcasm. 

On Friday, July 26, 2024 at 8:49:50 AM UTC-6 dgulb...@gmail.com wrote:

Surely not, but some are trying.  2 days in a row I happened

to witness a family of 4 making a commotion around my

trellised grape vine.  The adults kept darting at the leaves, while

the youngsters were pecking at the ground.  (The default behavior

of the beetles when disturbed is to let go of the leaf and simply

drop to the ground (where my eyes can't find them, but birds surely

could).  

I see no other explanation besides their eating the beetles.  The grapes

themselves are still hard green, and there is no sign of broken clusters

on the ground.

David Gulbenkian  Crown Hill, Jeffco

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[cobirds] Re: Can Magpies save us from Jap Beetles?

Correction: I should have said "family", not "genus"

On Saturday, July 27, 2024 at 5:19:13 PM UTC-6 dgulb...@gmail.com wrote:

Saw them again today from the kitchen window, and this

time there was no doubt soever what they were doing.

Impossible to know if their direct flights to a leaf were successful

or if most of those eaten were the ones knocked to the ground.

If they were successful with direct flight, that is astonishing to me

that so large a bird could control its flight and stop on a dime.

This is the first year this is happened. Wouldn't it be great if these members

of a notoriously intelligent and communicative genus passed on this 

discovery.

On Friday, July 26, 2024 at 8:49:50 AM UTC-6 dgulb...@gmail.com wrote:

Surely not, but some are trying.  2 days in a row I happened

to witness a family of 4 making a commotion around my

trellised grape vine.  The adults kept darting at the leaves, while

the youngsters were pecking at the ground.  (The default behavior

of the beetles when disturbed is to let go of the leaf and simply

drop to the ground (where my eyes can't find them, but birds surely

could).  

I see no other explanation besides their eating the beetles.  The grapes

themselves are still hard green, and there is no sign of broken clusters

on the ground.

David Gulbenkian  Crown Hill, Jeffco

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[cobirds] Re: Can Magpies save us from Jap Beetles?

Saw them again today from the kitchen window, and this

time there was no doubt soever what they were doing.

Impossible to know if their direct flights to a leaf were successful

or if most of those eaten were the ones knocked to the ground.

If they were successful with direct flight, that is astonishing to me

that so large a bird could control its flight and stop on a dime.

This is the first year this is happened. Wouldn't it be great if these members

of a notoriously intelligent and communicative genus passed on this 

discovery.

On Friday, July 26, 2024 at 8:49:50 AM UTC-6 dgulb...@gmail.com wrote:

Surely not, but some are trying.  2 days in a row I happened

to witness a family of 4 making a commotion around my

trellised grape vine.  The adults kept darting at the leaves, while

the youngsters were pecking at the ground.  (The default behavior

of the beetles when disturbed is to let go of the leaf and simply

drop to the ground (where my eyes can't find them, but birds surely

could).  

I see no other explanation besides their eating the beetles.  The grapes

themselves are still hard green, and there is no sign of broken clusters

on the ground.

David Gulbenkian  Crown Hill, Jeffco

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[cobirds] Can Magpies save us from Jap Beetles?

Surely not, but some are trying.  2 days in a row I happened

to witness a family of 4 making a commotion around my

trellised grape vine.  The adults kept darting at the leaves, while

the youngsters were pecking at the ground.  (The default behavior

of the beetles when disturbed is to let go of the leaf and simply

drop to the ground (where my eyes can't find them, but birds surely

could).  

I see no other explanation besides their eating the beetles.  The grapes

themselves are still hard green, and there is no sign of broken clusters

on the ground.

David Gulbenkian  Crown Hill, Jeffco

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Re: [cobirds] House Wrens: The most efficient backyard hunters around (Arapahoe)

Regarding trends of American Goldfinch, I took a look at analyzed results from the USGS North American Breeding Bird Survey (BBS) (https://eesc.usgs.gov/MBR/), and pasted graphs below for the whole USA and just for Colorado.  The trend percentages per year are those shown when viewing the graphs. Then for comparison, the same graphs for Lesser Goldfinch. The BBS shows declines for AMGO at both scales, and an increase for LEGO at the Colorado scale with no trend for the whole USA.

eBird also gives trends, which one can check out here: https://science.ebird.org/en/status-and-trends

David Suddjian

Littleton CO

AMERICAN GOLDFINCH - UNITED STATES    (TREND = -0.5%/YEAR)

AMERICAN GOLDFINCH - COLORADO ONLY    (TREND = -0.7%/YEAR)

LESSER GOLDFINCH - UNITED STATES    (TREND = 0%/YEAR)

LESSER GOLDFINCH - COLORADO ONLY    (TREND = +2.2%/YEAR)

On Thu, Jul 25, 2024 at 4:00 PM <dtyber@gmail.com> wrote:

I've heard that AG numbers are down all across the country.

 

Debbie Tyber

Breckenridge

 

From: 'Jim Tyler' via Colorado Birds <cobirds@googlegroups.com>
Sent: Tuesday, July 23, 2024 7:02 PM
To: cobirds@googlegroups.com
Subject: Re: [cobirds] House Wrens: The most efficient backyard hunters around (Arapahoe)

 

Now this is interesting. Up through 5 or so years ago I had trouble keeping my thistle feeders full. I started seeing American Goldfinches first, followed relatively quickly by Lesser Goldfinches. Then the numbers of Goldfinches started dropping off, and for the past 2 years they refused to eat any thistle; it was all No Mess for them (split sunflower seeds and millet).

This year they started showing some interest in thistle again (yes, I can be rather pigheaded and kept one thistle feeder up as a "canary"), and the numbers were definitely up, so I started hanging my thistle feeders again.

I now have 4 thistle feeders up and they see constant attention throughout the day. I have Lesser Goldfinches, with only one or two American Goldfinches; running between 12 and 20 at a time.

So while I have no idea where the AGs have gone, I know where the LGs are :)

Jim Tyler
Roxborough

On 7/20/2024 6:55 PM, Tony Kay wrote:

Enjoyed your tales of backyard birding activity.  One of my observations in our area Denver S/E near Cherry Creek  shopping center are the changes in bird demographics. Spotted Towhees have been increasing year after year and are now permanent residents while American Goldfinch have become scarce. The Goldfinch population started falling off about 3 years ago and by last year there were very few around. This year I have only seen one at our feeder. The House Wrens are doing great, they love foraging in our thick undergrowth as with you the Chickadees are flourishing and all the locals seem to have had good healthy broods. 

 

What's happened to the Goldfinches?

 

Tony Kay

Denver

 

 

Sent from my iPhone

On Jul 19, 2024, at 8:08 PM, Jared Del Rosso <jared.delrosso@gmail.com> wrote:



My backyard in Centennial (Arapahoe) is in shambles. Heat, drought, and insects have wildflowers falling in exhaustion. Blooms are misshapen, tiny, or absent. Plants are a third, sometimes half as tall as they were last year. The seeds of last year's six-foot tall sunflowers and Rocky Mountain Bee Plant have grown into 2-foot tall plants with unremarkable flowers. 

Amid all of this, families of birds are doing their family of bird things. Black-capped Chickadees and Spotted Towhees have doubled in number recently. A spotted and streak-faced robin is hunting like an adult.

One morning, two or three days ago, it was practically a Disney movie out there. A rabbit ran past a flicker pair, as the two woodpeckers bobbed their heads at each other from the edge of a wildflower. An adult towhee bathed in my bird bath as robins pulled earthworms from the ground. A squirrel pair chased each other. Chickadees raced around the honeylocust.

But it's the House Wrens that most impress me this time of year. A large family (6? 8?) has been inspecting every opening, corner, and edge for prey. Plunging into the tangles and darkness of stick piles, a Bagster full of yard waste, even overlap in garden fabric, they do their genus—Troglodytes*, the Cave Dwellers—proud. They're remarkably proficient. About as often as not, I see them with something in their bill. I've seen a moth for sure, but usually it's some indistinct blob to my eyes (I usually don't have my binoculars or camera with me).

I know we reserve the title of "Bird of Prey" for those who hunt larger fare, but there's not an eagle, hawk, or falcon as capable as a parent wren.

 

- Jared Del Rosso

Centennial, CO

lonesomewhippoorwill.com

* Troglodytes is also something of an insult when applied to people. (The link here directs to Merriam-Webster.)

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RE: [cobirds] House Wrens: The most efficient backyard hunters around (Arapahoe)

I've heard that AG numbers are down all across the country.

 

Debbie Tyber

Breckenridge

 

From: 'Jim Tyler' via Colorado Birds <cobirds@googlegroups.com>
Sent: Tuesday, July 23, 2024 7:02 PM
To: cobirds@googlegroups.com
Subject: Re: [cobirds] House Wrens: The most efficient backyard hunters around (Arapahoe)

 

Now this is interesting. Up through 5 or so years ago I had trouble keeping my thistle feeders full. I started seeing American Goldfinches first, followed relatively quickly by Lesser Goldfinches. Then the numbers of Goldfinches started dropping off, and for the past 2 years they refused to eat any thistle; it was all No Mess for them (split sunflower seeds and millet).

This year they started showing some interest in thistle again (yes, I can be rather pigheaded and kept one thistle feeder up as a "canary"), and the numbers were definitely up, so I started hanging my thistle feeders again.

I now have 4 thistle feeders up and they see constant attention throughout the day. I have Lesser Goldfinches, with only one or two American Goldfinches; running between 12 and 20 at a time.

So while I have no idea where the AGs have gone, I know where the LGs are :)

Jim Tyler
Roxborough

On 7/20/2024 6:55 PM, Tony Kay wrote:

Enjoyed your tales of backyard birding activity.  One of my observations in our area Denver S/E near Cherry Creek  shopping center are the changes in bird demographics. Spotted Towhees have been increasing year after year and are now permanent residents while American Goldfinch have become scarce. The Goldfinch population started falling off about 3 years ago and by last year there were very few around. This year I have only seen one at our feeder. The House Wrens are doing great, they love foraging in our thick undergrowth as with you the Chickadees are flourishing and all the locals seem to have had good healthy broods. 

 

What's happened to the Goldfinches?

 

Tony Kay

Denver

 

 

Sent from my iPhone

On Jul 19, 2024, at 8:08 PM, Jared Del Rosso <jared.delrosso@gmail.com> wrote:



My backyard in Centennial (Arapahoe) is in shambles. Heat, drought, and insects have wildflowers falling in exhaustion. Blooms are misshapen, tiny, or absent. Plants are a third, sometimes half as tall as they were last year. The seeds of last year's six-foot tall sunflowers and Rocky Mountain Bee Plant have grown into 2-foot tall plants with unremarkable flowers. 

Amid all of this, families of birds are doing their family of bird things. Black-capped Chickadees and Spotted Towhees have doubled in number recently. A spotted and streak-faced robin is hunting like an adult.

One morning, two or three days ago, it was practically a Disney movie out there. A rabbit ran past a flicker pair, as the two woodpeckers bobbed their heads at each other from the edge of a wildflower. An adult towhee bathed in my bird bath as robins pulled earthworms from the ground. A squirrel pair chased each other. Chickadees raced around the honeylocust.

But it's the House Wrens that most impress me this time of year. A large family (6? 8?) has been inspecting every opening, corner, and edge for prey. Plunging into the tangles and darkness of stick piles, a Bagster full of yard waste, even overlap in garden fabric, they do their genus—Troglodytes*, the Cave Dwellers—proud. They're remarkably proficient. About as often as not, I see them with something in their bill. I've seen a moth for sure, but usually it's some indistinct blob to my eyes (I usually don't have my binoculars or camera with me).

I know we reserve the title of "Bird of Prey" for those who hunt larger fare, but there's not an eagle, hawk, or falcon as capable as a parent wren.

 

- Jared Del Rosso

Centennial, CO

lonesomewhippoorwill.com

* Troglodytes is also something of an insult when applied to people. (The link here directs to Merriam-Webster.)

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[cobirds] Re: Grandview Cemetery on 12July2024 (Larimer)

Thanks for the useful observations. 

Janeal Thompson

Lamar, CO

On Saturday, July 13, 2024 at 3:16:38 PM UTC-6 DAVID A LEATHERMAN wrote:

Against my better judgement, I went to Grandview Cemetery in Fort Collins in late afternoon yesterday, 12 July 2024.  The temperature was right at 100 degrees F and I wanted to see how the living things at this site were coping.  The following were the most notable:

 

• An active broad-tailed hummingbird nest I've been monitoring showed the beaks of hatchlings.  Prior to yesterday my brief checks seemed to indicate, without being able to see into the nest cup, the eggs had not hatched yet.  When I got there yesterday the female was in the nest, with two tiny beaks pointed skyward beside her.  The adult left, presumably to obtain food for the nestlings.  The picture shows the young with their beaks open.  Since the female had not yet returned when the photo was taken (which she did shortly after), I believe they were panting the way hot birds do, rather than begging.

 

 

 

• An adult mourning dove was found in obvious distress (panting) under a peony next to a headstone.  I picked it up and carried it a short distance to a puddle of sprinkler irrigation water.  The bird did not drink but strongly flew away.
• A man and his dog were in the irrigation ditch.  I assumed they were hunting the golf balls that sometimes end up there.  He told me his dog (one of the crossbreeds called "Cur") liked to hunt crayfish.  Apparently the dog seizes them, shakes them, and lets them go to swim/pinch another day.  
• A fox squirrel was lying across the top of a headstone.  I felt the stone, and while not cool, it was definitely cooler than the ambient air temperature.  I sometimes see this same behavior on sunny winter days when the headstones are warmer than the ambient temperature.

 

 

• A white-breasted nuthatch was foraging in spruce and had the smudgy face of an overworked parent that's been feeding young non-stop.  I interpret the smudges as meaning some of its foraging occurs on American elm branches covered with the black sooty mold that develops in trees with chronic European elm scale infestation.  The scales secrete a sugary excrement called honeydew rains down and serves as a substrate for the mold.

 

 

Dave Leatherman

Fort Collins

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Re: [cobirds] Merlin? Golden Ponds Longmont, Boulder

Hi Ron,

Were you able to see the length of the wings relative to the tail? On an accipiter, the wings are short and only reach the base of the tail. On a Merlin, the pointy wing tips would extend at least halfway down the tail. Also, regarding the tail striping: an immature accipiter will have gray and brown stripes of approximately equal width, while the Merlin has a dark tail with thin white bars.

Peter Ruprecht

Superior

On Thu, Jul 25, 2024 at 10:00 AM 'ronbco' via Colorado Birds <cobirds@googlegroups.com> wrote:

2 days ago I got a great 5 min look at what either was a sharpie/coopers or merlin.

I did not get a pic. But I was perhaps only 20 feet from it as it perched on a low branch.

I have looked at various reference material and I am pretty sure it was a Merlin. But I know they are rare for this area and this season.

I posted it on ebird but won't be surprised if it is not accepted with no photo.

Here is what I observed:

Smaller than coopers. Definitely bigger than Kestrel.  Shorter tail than sharpie. Dark eye. (no yellow), Faint white eyebrow stripes. No mustache stripes. Vertical streaks on underside extending all the way down. Skinny legs of average length. Blocky but small head. Rounded tail. White band on end of tail, otherwise bands of dark and medium brown. Perched in a cottonwood near the far west pond (stream side).

Thoughts?

Ron Bolton, Berthoud

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[cobirds] Merlin? Golden Ponds Longmont, Boulder

2 days ago I got a great 5 min look at what either was a sharpie/coopers or merlin.

I did not get a pic. But I was perhaps only 20 feet from it as it perched on a low branch.

I have looked at various reference material and I am pretty sure it was a Merlin. But I know they are rare for this area and this season.

I posted it on ebird but won't be surprised if it is not accepted with no photo.

Here is what I observed:

Smaller than coopers. Definitely bigger than Kestrel.  Shorter tail than sharpie. Dark eye. (no yellow), Faint white eyebrow stripes. No mustache stripes. Vertical streaks on underside extending all the way down. Skinny legs of average length. Blocky but small head. Rounded tail. White band on end of tail, otherwise bands of dark and medium brown. Perched in a cottonwood near the far west pond (stream side).

Thoughts?

Ron Bolton, Berthoud

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RE: [cobirds] Is it a Common or Chihuahuan Raven?

Is there a link to this article?

 

Ross

 

 

Ross Silcock

6810 Tournament Drive

Houston, TX 77069

402-618-4933

 

 

 

From: cobirds@googlegroups.com <cobirds@googlegroups.com> On Behalf Of Robert Righter
Sent: Sunday, July 21, 2024 1:32 PM
To: cobirds <cobirds@googlegroups.com>
Subject: [cobirds] Is it a Common or Chihuahuan Raven?

 

Hi

 

In the recent North American Birds, Vol 75, Number 1, '24 there is an excellent article by David Sibley about the conundrum of how to separate (or not) the Common Raven from the Chihuahuan Raven. The article is informative as it shows how  Sibley, using methods of field ornithology, slowly untangles  the complexities of raven identification. In Colorado sighting of the Chihuahuan Raven may actually be rarer than what we all thought. Nathen Pieplow and Tony Leukering were cited in the article for their contributions. Read the article and share your thoughts.

 

Bob Righter

Denver, CO

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[cobirds] March- May 2024 Photos for CO Birds "News From The Field" Article

Greetings, Colorado Bird Photographers!

Once again, we are on the lookout for captivating images for the upcoming issue of Colorado Birds, the quarterly journal published by the Colorado Field Ornithologists. We are particularly interested in photos captured between March - May 2024 for the "News From The Field" article. Kindly submit your finest, high-quality photographs featuring rare, vagrant, or uncommon bird species within the specified timeframe (refer to the guidelines below).

Please send your submissions to me at george@cobirds.org by August 31, 2024. Also, if possible use the guidelines below for naming your image files.

We are specifically seeking images of the following species reported in Colorado during this period:

Brant

Eurasian Wigeon

Mexican Duck

Surf Scoter

Black Scoter

Long-tailed Duck

Red-necked Grebe

Lesser Nighthawk

Black Swift

Vaux's Swift

Ruby-throated Hummingbird

American Golden-Plover

Snowy Plover

Piping Plover

Hudsonian Godwit

Short-billed Gull

Great Black-backed Gull

Sabine's Gull

Laughing Gull

Caspian Tern

Least Tern

Red-throated Loon

Pacific Loon

Yellow-billed Loon

Neotropic Cormorant

Brown Pelican

Glossy Ibis

White-tailed Kite

Common Black Hawk

Acadian Flycatcher

Vermilion Flycatcher

Scissor-tailed Flycatcher

White-eyed Vireo

Yellow-throated Vireo

Blue-headed Vireo

Philadelphia Vireo

Pacific Wren

Winter Wren

Curve-billed Thrasher

Varied Thrush

Wood Thrush

Bohemian Waxwing

Black-chinned Sparrow

Black-throated Sparrow

Golden-crowned Sparrow

Eastern Meadowlark

Chihuahuan Meadowlark

Worm-eating Warbler

Golden-winged Warbler

Blue-winged Warbler

Prothonotary Warbler

Lucy's Warbler

Mourning Warbler

Hooded Warbler

Cape May Warbler

Magnolia Warbler

Blackburnian Warbler

Black-throated Blue Warbler

Pine Warbler

Yellow-throated Warbler

Prairie Warbler

Black-throated Green Warbler

Summer Tanager

Scarlet Tanager

Northern Cardinal

Yellow Grosbeak

Painted Bunting

We appreciate your contributions to Colorado Birds. Your dedication and generosity play a crucial role in maintaining the excellence of our journal, making it one of the finest in the country. Thank you for sharing your photographic endeavors with us!

George Mayfield

Wheat Ridge, CO

Photo Editor, Colorado Birds

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Photo Submission Guidelines:

Photos from March - May 2024

Photos must be your own, and by submitting them, you give Colorado Birds permission to reproduce in any issue and on the CFO website. We always credit images with the photographer's name.

Please use the following format for the photo file names: species-date-location-county-photographer. For example, a photo of an American Robin taken Oct. 4, 2019 at Chatfield State Park by John James Audubon would be named as follows: 

American Robin (or AMRO)-20191004-Chatfield-Adams-JJAudubon.

Minimum quality for interior publication use is 750 x 900 pixels. To be considered for the journal cover, photos must be at least 2625 pixels (vertically) x 1725 pixels (horizontally). Please send original files in the largest resolution possible (300 dpi is preferable) . We will crop and resize as needed.  Email your submissions to george@cobirds.org

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