Subject: Birds with "recent" range expansions...
Date: Oct 3 02:57:56 2002
From: Jim McCoy - jfmccoy at earthlink.net


Northern cardinal, northern mockingbird, tufted titmouse, turkey
vulture...there are plenty. More feeders, fewer trees, more farmland, less
farmland, more trees -- as long as habitats change, birds will follow, and
ranges will continue to expand and contract.

Jim McCoy
jfmccoy at earthlink.net
Redmond, WA



-----Original Message-----
From: cwolfe at u.washington.edu [mailto:cwolfe at u.washington.edu]
Sent: Wednesday, October 02, 2002 6:13 AM
To: tweeters at u.washington.edu
Subject: Birds with "recent" range expansions...


Tweeters -

I'm curious about birds that have undergone recent range expansions. I
believe Patrick and Ruth Sullivan mentioned yesterday about a Western Scrub
Jay near Randle and they surmised that the bird's appearance in that area
might represent a range expansion...what are some other birds that come to
mind that have undergone either small- or large-scale range expansions? I
can think of a few, such as the Barred Owl, House Finch, and other obvious
candidates...American Crow, European Starling, and House Sparrow...but I'm
sure there are others. Any thoughts?

Thanks!

Chris Wolfe