So I’m integrating 2 new female ducks that are about 3ish months with a male and a female duck that are about 2 years old. One of the new ducks is a blue Swedish another one is a Pekin duck. The older male duck is a Rouen duck and the other lady is a cayuga. When we first started introductions the male mounted the pekin and just sat on top of her for a little but afterwards left her alone. However the male just will not leave the blue Swedish duck alone. He will just stand on top of her and bite her head. He doesn’t let up at all and just keeps chasing her and standing on top of her. I was wondering if this is normal behavior and if we should let them keep going or if we should stop this behavior.