Black-eared Bushtit, Arapahoe

[Ben S]

Hi all - 

This evening, a group of about 8 bushtits were feeding at once on suet in my yard. I was suprised to see a Black-eared form, my first ever. Unfortunately, I was unable to get a photo. Hopefully he will come back with the rest of the Bushtits. How regular is this in Colorado?

Ben Sampson 

Centennial, Co

[kickback]

I saw some a few years back in Colorado Springs and have pictures of them. They were not fully  black-eared but the black was very apparent.

http://www.avoapples.com/birds/IMG_9175_cr.jpg

Bill Kosar    Colorado Springs

[Karl Stecher Jr.]

I had one about ten years ago in my Centennial yard, at the suet feeder.

 

Karl Stecher

Aurora

 

 

 

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From: "kickback" <bill_...@msn.com>
Sent: Wednesday, August 15, 2018 1:42 AM
To: "Colorado Birds" <cob...@googlegroups.com>
Subject: [cobirds] Re: Black-eared Bushtit, Arapahoe

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[Joe Roller]

In the November 12, 2015 edition of "Birdwatching Magazine" Kenn Kaufman 

wrote an interesting explanation of how black-eared bushtits were once considered

a separate species, but are now known to be variations of the Common Bushtit.

They were two species until 1931, when they were lumped, then split again in 1957,

before finally being lumped conclusively in 1973

I have the link if anyone wants it, but it's not hard to find if you google Black-eared Bushtit.

Joe Roller, Denver

On Wed, Aug 15, 2018 at 1:44 AM, Karl Stecher Jr. <kste...@idcomm.com> wrote:

I had one about ten years ago in my Centennial yard, at the suet feeder.

 

Karl Stecher

Aurora

 

 

 

---

From: "kickback" <bill_...@msn.com>
Sent: Wednesday, August 15, 2018 1:42 AM
To: "Colorado Birds" <cob...@googlegroups.com>
Subject: [cobirds] Re: Black-eared Bushtit, Arapahoe

 

I saw some a few years back in Colorado Springs and have pictures of them. They were not fully  black-eared but the black was very apparent.

 

http://www.avoapples.com/birds/IMG_9175_cr.jpg

 

 

Bill Kosar    Colorado Springs

On Tuesday, August 14, 2018 at 11:10:08 PM UTC-6, Ben S wrote:

Hi all - 

This evening, a group of about 8 bushtits were feeding at once on suet in my yard. I was suprised to see a Black-eared form, my first ever. Unfortunately, I was unable to get a photo. Hopefully he will come back with the rest of the Bushtits. How regular is this in Colorado?

 

Ben Sampson 

Centennial, Co

 

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[Charles Hundertmark]

A small piece of the Black-eared Bushtit puzzle was discovered by one of my New Mexico birding mentors, Barbara McKnight. The long-time secretary of the New Mexico Ornithological Society, Barbara had a banding project in the Sandia Mountains. Sometime in the late 1960s or early ‘70s on her banding site, she netted a first-year Black-eared Bushtit. A year later, she netted the same bird with brown “ears.” In the interior mountain race of the Bushtit, this appears to be a pattern with males. Many have some degree of black in the auriculars (BNA Online).

Chuck Hundertmark

Lafayette, CO 

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[Ben S]

So basically it sounds like the few Black-eareds we have this far north are immature males. Would that suggest some Black-eared genes?

Ben Sampson

Centennial, CO

[Charles Hundertmark]

There is no Black-eared species, though black auriculars are more prevalent in subspecies in Mexico than in the United States. It’s worth the small subscription fee to have access to Birds of North America (BNA) Online. It tends to be the most current authoritative source for understanding current thinking on particular species. 

Chuck Hundertmark

Lafayette, CO

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[MARK CHAVEZ]

To continue the theme of Black-eared form of the Bushtit along the front range here are a couple of photos from the backyard.

Mark Chavez
Lakewood-Green Mtn
http://jaeger29.smugmug.com/

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[Charles Hundertmark]

It’s definitely the time year when there are large family groups of Bushtits foraging, and those groups are likely mostly juveniles with black auricular.

Chuck Hundertmark

Lafayette

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