Originally Posted by pgreenway
I have a 16-month old formerly feral female, now tame, who has pulled out a nice little pile of feathers over the past couple of days. They're almost all white, and seem to come from her undercoat. She's laid several clutches of eggs (none fertilized) over the past six months, and I wonder if she intends to line her next nest with them. I've been saving them just in case. Any ideas?
Pigeons in general do not use the soft undercoat feathers for building the nests (unlike other birds like finches which are nest makers and use soft feathers at the inner core of the nest). Pigeons though use the long feathers when they do not have adequate nesting material (like small twigs/sticks, hay, shredded paper, shredded leaves, coconut fiber, etc.).
Your pigeon might be going through a molting, you can also check if the pigeon has any feather mites.