The Internet Bird Collection (IBC) is a free audiovisual library "with the ultimate goal of disseminating knowledge about the world's avifauna." Many thousands of videos, photos and sounds at the IBC inform birders, ornithologists, conservationists, etc. and showcase a variety of bird behavior. The IBC welcomes people to upload and share their own bird videos, photos and sounds on the site.
As you'd expect, you'll find many Campephilus videos, photos and sounds at the IBC!