Subject: Re; gull hybridization
Date: Jan 23 09:20:52 2004
From: Eugene and Nancy Hunn - enhunn at comcast.net


Tweets, et al.,

But since when do Herring migrate further than Great Black-backed gulls,
which are recorded in Florida, etc., in winter, and since when do
Glaucous-winged Gulls migrate further than Westerns (controlling for the
population at risk of hybridization, that is, the Glaucous-winged and
Western Gulls of western Washington. Both winter to southern California, I
believe.

Gene Hunn.
----- Original Message -----
From: "Cliff and Lisa Weisse" <october at ida.net>
To: "Tweeters" <tweeters at u.washington.edu>
Sent: Friday, January 23, 2004 5:49 AM
Subject: Re: Re; gull hybridization


> Mike,
>
> I think you might have misunderstood the point Tony
> Leukering's post from ID Frontiers. Hybridization with a
> species that migrates longer distances, like Herring or
> Glaucous Gulls, could make the offspring of those matings
> more likely to migrate longer distances than a pure GBBG.
> So even though GBBG x Glaucous or Herring are rare, those
> rare individuals may be more likely to migrate to WA than a
> pure GBBG.
>
> Cliff
>
>
>
> ----- Original Message -----
> From: "MIECHEL TABAK" <mtabak at shaw.ca>
> To: <tweeters at u.washington.edu>
> Sent: Friday, January 23, 2004 1:35 AM
> Subject: Re; gull hybridization
>
>
> | fact is hybridization in GBBG is rare. This is the
> exception in GBBG and
> | not the rule. Agreed there are a few apparent hybrid
> GBBG, with GBBG X
> | Herrring Gull and GBBG x Glaucous Gulls seen very rarely .
>