I found a cool app called Bird Sound in the market. What's funny is that it has around 60 sounds of various birds. I have some birds that like to hang around my house so the other day I turned the volume way up and went through a few sounds and it was funny watching how the birds reacted! Some flew away, others try to fly near me and others just whistled back as if they were talking to the bird sounds on my phone! LOL! It even has a duck sound and I made a bunch of ducks stop in their tracks when they heard the duck sound from Droid! HA HA!