Coolest thing ever: click on the link!

http://www.dnr.state.mn.us/mcvmagazine/bird_songs_interactive/index.html

And your bird can sing. Click on the link to get the interactive poster. Click on each bird and watch your cat go crazy. (Note. Make sure you don't mouse away from the bird or it will stop singing. Leave the cursor over it. Some of the songs go on for half a minute or so!)