>I seem to recall seeing the mapped range of American Wigeons extending
>right to the Bering Straits (and across?). Like Tundra Swans, Sandhill
>Cranes, Gray-cheeked Thrushes? I guess I misremembered.
>
>Gene.

Part of the problem is that it's hard to find interhemispheric range maps.
One of the really great bird books would be simply a set of world range
maps for all the species. Looking at either a North American or a Eurasian
book doesn't tell the story about the diverse bunch of species that cross
the Bering Straits every spring to breed in the hemisphere opposite to that
in which they winter.

When I saw a Gray-cheeked Thrush and a Northern Wheatear almost in the same
shrub on the eastern end of the Chukotka Peninsula in July (and you could
have seen the same combo in western Alaska), I marvelled that one of them
would spend the winter in the Amazon Basin, the other in East Africa. What
stories they could exchange!

Dennis Paulson, Director phone: (206) 756-3798
Slater Museum of Natural History fax: (206) 756-3352
University of Puget Sound e-mail: dpaulson at ups.edu
Tacoma, WA 98416