I am new to owning finches and have 3 zebra finch pairs for a month now. Every day when i clean the cage I find quite a bit of tiny-winy feathers on the ground, they keep flying all over when I try to tidy them up. Mostly, they are white coloured (so should be from the white pair). I also occassionally (once in a few days) notice one or two long thick black/grey full feathers, but they dont fly that much.
I have read about sick finches, and I think they are not sick either

So, is it normal to see such small size feather loss for zebras? How to say if they are molting? What can I do to get them back to normal? I also think it would be difficult to get some medicine around. Is there some natural way, food contents etc., by which i can help the zebras?
