So this is kind of a silly question (well, two)... But I honestly don't know! What's the difference between Grulla and Grullo? I know they're both identical colors, but some people say it's just a spelling preference, and others say Grulla is feminine and Grullo is masculine. Also, pronunciation of the two? I speak French, not Spanish, and I'm pretty sure they're Spanish words... I've always said "Grew-la" ("grew-low") but I think they might be pronounced differently because they're Spanish terms?