Pigeon Question

[Kyouryuu]

I'm trying to figure out an issue with npc_pigeon.

I know how to make them fly off using the info_hint_nodes described in the tutorial elsewhere on Interlopers. My problem is that, if I simply place a npc_pigeon in the world (a world with info_nodes and everything else a growing AI needs), they do this goofy stutter-walk instead of some of the other animations in their banks (like pecking at the ground, fluttering, etc). Is this a case where I would need to manually hook up a scripted_sequence to each one, or is there a way to set up their default behaviors so they do them?