feathers aloft

I have a young (maybe eight or nine weeks old) King pigeon who was recently rescued. She does a lot of preening, which I know is normal, but I have noticed for the past couple of days she has been shedding a lot of feathers--probably twice as many or more than that of what is usual. Often...

We started construction back in April, first birds arrived April 17. My loft is 4' x 16', with half the floor plywood and half expanded metal. There is a 4' x 4' breeder section, with 8 nest boxes, a 4' x 6' section for flyers, with plenty of perches, and then a 4' x 4' center storage area/air...