In the Winter I covered the aviary with polygal and only a month ago I took it out.I have 4 bishops (1 male with 3 females) and the male is still looking like his females although its already Summer why didnt he change his plumage to breeding plumage? it could be because I didnt take the polygal away earlier and it was much darker in the aviary so he didnt understand that its summertime and thats why he didn't change his plumage??
