I have 6 ducks, one male and 5 females, Howey the male is one happy duck, my females do the head bobbing when Howey waddles up to them, they never do the head bobbing toward me, I have even seen one of the females lay down in front of him with her neck stretched way out flat on the ground and Howey climbs her back and thats the rest of the story, one of my females was crippled from birth, she has a hard time following the rest of the gang but she really tries hard, earlier today I was walking with her and Howey came up to us and the crippled female (Daisy) went up to Howey and she started bobbing her head, the first time I ever seen her do that. Howey prefers to mate with his females when they are in the creek. I love my ducks.