For anybody who actually owns a copy of poser 6 or higher I recommend you visit e frontier (oops now smith micro's) site called content paradise.

http://www.contentparadise.com/us/user/home.php

They are the ones who bought poser and they give away a free item every week. I have a pretty full set of dinosaurs, early mammals, farm animals and several birds just from checking in.

The give-away requires registration and your poser serial as proof. This weeks item is long stemed roses. I Don't need it now but I'll download it anyway. If you do the same you could have your pick of crow, sparrow, cardinal, blue jay, rock pidgon, hawk, herron, even a pelican and flamingo by now.

For your immediate needs Anthony appleyard has a stork and duck and agentsmith has a poser gull in freestuff.

Ive also had good luck with this mega index. http://www-c.inria.fr/gamma/download/ANIMALS/index0.php

It has non posable figures in a variety of formats. The webpage only works with firefox opera or other non microsoft browser.