I second this, my girls do it to me when either very excited or anxious- One of my ducks also bites, when very hormonal- she thinks I'm her drake due to imprinting young. I think a lot of behaviours are misinterpreted as aggression.
Your reply reminded me of when one of my pekins was sick and clearly not doing well - she was very irritable and would bite us if we touched her - she got better and her good temper returned. I don't think that's what's going on in this case, but nibbling can occur for all sorts of reasons.
Exactly, Lots of reasons. It wont always be obvious, but I wouldnt be fast to conclude its aggression!
It can count as a flock if that's all the 2 of them have ever known. If they have been in a bigger flock reduced down to just the 2 of them, it tends to change into a "roommate" situation where both are equal. This is not always the case but it tends to be that way. If it has always just been the 2 of them then sometimes the stronger personality comes out as "leader". My duck that just passed away and her sister were/are both khaki campbell and then the cayuga that I have already mentioned. My khaki's were never dark enough to confuse with a cayuga. Maybe put up a picture and we can see what you have. It could always be a crossbreed of the 2.do two ducks count as a flock? I think she is the leader of the other duckshe is either a dark campbell or a Cayuga. Has the Campbell brown black feathers but a green head and specks of green on tail
how old? The head looks very dark in colour
