Can swans be gay

An estimated one-quarter of all black swans pairings are homosexual and they steal nests, or form temporary threesomes with females to obtain eggs, driving away the female after she lays the eggs. [13][14].

Gay swans may even raise offspring together as a couple. A female may temporarily associate with a male-male pair, mate with them, and leave her eggs with them. By sharing the workload more equally, male-male parents access better nesting sites and territories than straight couples.