Date: 11/5/17 9:30 am
From: Dennis Vroman <dpvroman...>
Subject: [RV Birds] Re: [obol] Spoke too soon on Costa's
Thanks Wayne for your detailed evaluation of the Hummer photo. It provides written comments on why my first impression of this bird was a Costa's. Believe I spotted the same bird after sending out the photo and realized my fingers typed too soon, it turned into an Anna's. Will continue looking for Costa's at our place (have had male Costa's in the past, really).

----- Original Message -----
From: Wayne Hoffman
To: Dennis Vroman ; <obol...> ; <rv-birds...>
Sent: Saturday, November 04, 2017 6:13 PM
Subject: Re: [obol] Spoke too soon on Costa's


I have to say, you did an excellent job of taking a photo that obscures field marks.

Costa's have shorter bills, but the tip is hidden behind a branch.

The "shingled" green and grey appearance of the flanks extends up almost to the gorget in Anna's, but again the critical area is hidden behind a branch.

The corners of the gorget are longer in adult Costa"s, but, (all together now!) are is hidden behind a branch!

The tail length does look more like Anna's.

The feathering around the eye does not look quite typical for either of them, but the angle makes it hard to assess.

If it was a Costa's you should see and hear it tomorrow, and be sure. If it was one of your Anna's you probably will never be sure.

On 11/4/2017 3:49:14 PM, Dennis Vroman <dpvroman...> wrote:

I'm thinking now that the bird was just a hunched up Anna's; spoke too soon. There's a lot of them here. Folks can look at the photo and see what they think. The gorget looked purple when I was taking the photos, but that may have been due to poor lighting. The wings did appear to be short for a Costa's compared to tail length.

Not my first ID mistake, can't throw stones at others.


To unsubscribe from this group, send email to

You received this message because you are subscribed to the Google Groups "Rogue Valley Birds" group.
To unsubscribe from this group and stop receiving emails from it, send an email to rv-birds+<unsubscribe...>
For more options, visit

Join us on Facebook!