[quote=@Araby264]
<Snipped quote by Dynamics>

That's a new one. 
*the is a louder version of the chirp the bird makes, and if you look up, you can see a huge version of the bird flying high above us in the canopy, behind it trail a lot of littler birds. The one on your shoulder chirps once and flies away to join them.*
They must be migrating.
[/quote]

Hopefully it's only migration.