Re: McCown's Longspur Photos

Joe Morlan

FWIW, here are mine.'sLongspurP1120785.htm

On Tue, 10 Oct 2017 19:22:55 -0700, "Mark Eaton
[SFBirds]" <> wrote:

And my pictures are up as well… <>

I think we’ll have plenty more shortly… :)
Mark Eaton

On Oct 10, 2017, at 19:15, 'Alvaro Jaramillo' [SFBirds] <> wrote:

Nice shots Aaron!

I would add that there are some subtle differences between McCown’s and Chestnut-collared. McCown’s has a more rectangular shaped head, there is a steep although short forehead, and then a flat crown. On Chestnut-collared the curve of the forehead-crown is more even. The bill is deep in McCown’s, but also very triangular
(equilateral) in shape, almost like a Fox Sparrow. In some respects aspects of the bill and head shape and bill color, are more like a Snow Bunting which some studies suggest is a closer relative to McCown’s than the other longspurs. The facial pattern of Chestnut-collared also shows a shadow of the adult male pattern, in that
there is a dark crescent at the lower rear of the ear coverts, and a dark triangle on the upper rear of the ear coverts; often the darkest part of the face on a Chestnut-collared are these areas and not near the bill or lateral throat stripes. This SF individual McCown’s has a buff chest area that is like a ghost pattern of the
dark breast
area of the adult male McCown’s.

Awesome photos, great learning by looking at them.

Maybe we can score one in San Mateo!!


Alvaro Jaramillo


From: [] On Behalf Of Aaron Maizlish [SFBirds]
Sent: Tuesday, October 10, 2017 6:45 PM
To: SFBirds <>
Subject: [SFBirds] McCown's Longspur Photos

SF Birders,

Photos are likely starting to percolate onto eBird and Flickr, but I thought I would share with everyone some portraits from Crissy Field from this morning. I arrived at about 9:10AM, and like everyone else it seems I was able to spend some quality time with this great bird.

In case you want to enjoy the ID challenge yourself, I've posted eight pictures on my flickr feed - I found the National Geographic Guide to be more helpful than Sibley in this case. (Beadle and Rising helps too if you have it.) Note the pink bill with black tip - the plain
auriculars, plain bare--streaked buffy breast (which is very bright on this bird) and the rufous-toned median coverts (not bright like a male.)

I'm glad it turned out to be a McCown's, since therefore this was also my ABA-Continental #600. Thanks Hugh!

Photostream starts here:

Aaron Maizlish

San Francisco, CA

Posted by: "Alvaro Jaramillo" <>

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Joseph Morlan, Pacifica, CA

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