I would like to add a few geese (2-4) to my flock but everyone they forces you to buy males. Why do you have to have equal males to females? Won't the ganders hurt my ducks? So in order to have 2 female geese I have to order 4 geese- 2 of which are male? I got lucky being able to re-home 3 of my drakes but re-homing ganders? If there are female geese around will the ganders go after my lady ducks? I also do not want there to be a lot of aggression in my flock and it seems like having ganders would do that. I will look on CL to see what I can see but I am really hesitant to buy from some unknown flock....what do you all do?