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September 2014

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Subject:
From:
Bill Whan <[log in to unmask]>
Reply To:
Bill Whan <[log in to unmask]>
Date:
Fri, 19 Sep 2014 08:24:01 -0400
Content-Type:
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text/plain (47 lines)
John--
        Interesting query. I took a quick look at Cooke's Dist & Migr N Am
Gulls, and he says large numbers of first-cycle Bonies do not nest that
year, and tend to hang out together well south of the breeding grounds.
This might explain the differences in plumage, timing, and places were
they are found in migration. Cooke's book is from 1915 and there
probably are more recent resources...
BIll Whan


On 9/19/2014 6:28 AM, John Pogacnik wrote:
> The last couple weekends I have had the opportunity to check out the large
> concentration of Bonaparte's gulls at Lakeview Park in Lorain.  What I found
> interesting was the high percentage of these birds that had active molt
> occurring  in their flight feathers.  I saw quite a few that had areas of
> half-grown feathers in the primaries and secondaries.  At Conneaut yesterday
> I think I saw probably 400+ Bonaparte's gulls and not a single one was
> molting flight feathers.
>
>
>
> Evidently the birds at Conneaut were a  different flock than the flock at
> Lorain.  Wouldn't you think if you're seeing a high percentage of molting
> birds at Lorain, you'd see them at Conneaut also.  Did the Conneaut birds
> originate from a different breeding area than the Lorain flock?  They have a
> pretty large breeding range, ranging from Alaska to Quebec.  Were they have
> different latitudes?   It's kind of interesting.
>
>
>
> John Pogacnik
>
> 4765 Lockwood Road
>
> Perry, OH 44081

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