A Tweeter, I don't remember who, posted this URL, which might help out.
It provides translations of bird names in a number of different
languages:

http://www.camme.ac.be/~cammess/birds/

Jane Hadley
jhadle at halcyon.com
Seattle, WA
B. Max Gotz wrote:
>
> B.Max Gotz
> Box 291
> Whistler, BC
> V0N 1B0
>
> vx (604) 932-7247
> fx (604) 938-2925
>
> email- bmgotz at direct.ca
>
> Hi Tweeters,
>
> I am trying to put together a list of BC birds in
> various languages and am looking for standardized bird names.
> I have most of the relevant foreign field guides but they provide
> only a portion of the names. Of course, many BC resident birds
> are not mentioned.
> French names have been standardized for birds of the world
> in *Noms Francais des Oiseaux du Monde* published by Multi-monde
> Editions in Quebec. (around 1992, I haven't recieved it yet).
> I am especially looking for a similar publication of standardized
> names of North American or World birds for German, Spanish
> and Japanese. I would also include some other languages if a
> straightforward reference exists.
> Spanish is particularly confusing for me because of the apparent
> profusion of names. Between Stiles and Skutch(Birds of Costa Rica),
> and Howell and Webb, (Birds of Mexico and NCA) there are
> often 2, 3 or more names for a given species.
> Any suggestions are much appreciated.
> Thanks, Max

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