I have a black roo this year.
Edited by FibroFanny - 11/30/15 at 7:20am
As with any fibromelanistic bird, expression of fibro depends on a bunch of things, not the least of which is how many copies of the Fm gene they get. Expression is also affected by feather color, a fibro-inhibitive gene, the presence of dominant white, sex-linked factors - lots of things. So can they be as dark? Yes. But it's not a black or white issue, forgive the pun.
Beautiful. Thank you.