Have a sweet young blue Swedish drake, who has absolutely zero interest in other ducks, and a tiny female call duck (That I am planning on getting rid of) who keeps puffing out her chest and putting her head up and shoving herself against the poor boy while quacking a lot. He only seems mildly alarmed and tries to walk away, and she won’t stop even if I shove her away so I have to toss her in the pool. Any idea why she is doing this?