Yellow-Chinned Spinetail

Description:

So... Typically, the "Yellow-Chinned Spinetail" have a "spinetail", but this specimen not. Probably, we have three possibilities in here: 1- A predator was try to catch it and this bird left your feathers to escape. 2- A fight with another bird. 3- A change of feathers.. But, the 1 it's the more probable and the 3 the less one, since the birds have a gradual change of feathers.

Habitat:

I found this specimen a urban island of my city; on a region of transition between the Cerrado and Atlantic Forest.