FYI
LH
----- Original Message -----
From: "Max C. Thompson" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, November 30, 2011 12:24 PM
Subject: Snowy Owl Invasion


> Snowy Owl invasion:
>
>
>
> It is clear that we are witnessing the beginning of a major movement of
> Snowy Owls into our area this winter. In addition to enjoying this
> magnificent species, observers can help document both the age and sex of
> birds involved in this movement. Fortunately, it is straightforward
> identifying immature females (very heavily marked throughout the plumage)
> and adult males (very little markings), and with reference material,
> immature females and immature males can also be identified with
> confidence.
> Under field conditions, the three characters that are most helpful in
> ageing
> and sexing these owls is the amount and configuration of the markings on
> the
> scapular feathers (see introduction in most field guides for the location
> of
> these feathers), the tail, and the nape.
>
>
>
> If you see any Snowy Owls this winter, please attempt to photograph the
> bird from several different angles, with special focus on the bird's back,
> tail, and nape. I would greatly appreciate seeing photos and obtaining
> information on the date and location of each sighting. This information
> can
> be sent to me at the contact information listed below. Let me know if you
> have any questions. Many thanks.
>
>
>
>
>
> Mark Robbins
>
>
>
> [log in to unmask]
>
> Office: 785-865-3657
>
> Division of Ornithology
>
> University of Kansas Biodiversity Institute
>
> 1345 Jayhawk Boulevard
>
> Lawrence, KS 66045
>
>
>
>
>
>
>
>
>
>
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------------------------------------------------------------
The Audubon Society of Missouri's Wild Bird Discussion Forum
ASM Spring Meeting: April 27, 2012 in Joplin, MO
http://www.mobirds.org/ASM/Meetings.aspx