Nah, says here that they're flightless birds. Or were or whatever.

[Since they've apparently gone extinct, according to the book. It must suck to be a bird without the whole flying thing going for you... Wait, supplies? Oh!]

Uhuh, yeah, lotsa yellow! There were some other colours and stuff in there too. Ooh, and there was some wood and other bits and pieces to hold it all together, you know?