Date: 11/19/20 4:45 pm
From: Jeff Gilligan <jeffgilligan10...>
Subject: [obol] Re: Is this a jaeger, or parasitic persuasion?
The angle from which the photograph was taken could be somewhat misleading in regard to the tail length and wing length. See the various photographs of a Great-winged Petrel from La Jolla, CA. One gives a similar profile to the bird you photographed, while most appear to show a longer winged bird and one with a longer tail.

http://www.sandiegobirding.com/?p=1887

Jeff Gilligan



> On Nov 19, 2020, at 3:27 PM, Harry Fuller <atowhee...> wrote:
>
> photo taken off jetty near Eureka, CA, this week
>
> --
> Harry Fuller
> author of: San Francisco's Natural History: Sand Dunes to Streetcars:
> https://ecowise.wordpress.com/2017/04/20/sfnh/ <https://ecowise.wordpress.com/2017/04/20/sfnh/>
> author of Great Gray Owls of CA-OR-WA: https://ecowise.wordpress.com/2015/05/08/the-great-gray-owl-book/ <https://ecowise.wordpress.com/2015/05/08/the-great-gray-owl-book/>
> author of Freeway Birding: freewaybirding.com <http://freewaybirding.com/>
> birding website: http://www.towhee.net <http://www.towhee.net/>
> my birding blog: atowhee.wordpress.com <http://atowhee.wordpress.com/>
> <_8503817-Edit-Edit.jpg>


 
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