Not specific to the birds you are asking about, but this site has some interesting information:
SITES WITH BIRDSONGS
http://www.math.sunysb.edu/~tony/birds/links.html


Virginia Chong
Issaquah, WA
vichong at u.washington.edu



On Fri, 23 Sep 2005 Joaw9 at aol.com wrote:

> Good morning. I cannot remember, or find, a web site (non-subscription)
> where a range of bird song and calls are recorded by species. I would like to
> hear the call of Arizona thrashers and/or wrens. I am still trying to
> identify the bird call for my friend in Arizona. Now I have heard it for myself (on
> a video she sent me) but cannot place it.
>
> Jo Waldron
> Edmonds, WA
> joaw9 at aol.com
>
>