Researchers historically tended to assume birds either did not masturbate or did so only under the stress of captivity ... Accounts from hobbyists revealed that some owners had sought veterinary help when they caught their birds masturbating, fearing the animals might hurt themselves.

“folk husbandry often advises bird keepers to discourage or punish this behaviour, sometimes even resorting to surgery and hormonal interventions,”

People are HORRIBLE with birds. Even the ones that pretend to love them treat them like trash.

And then there's the fuckers that think that their views of the world matters more than anything else, and will punish masturbation because animals don't feel pleasure so it shouldn't be allowed, will punish them for having gay couples because gay shouldn't exist and especially not in animals (else how can you say your main homophobic argument of "gay is unnatural, only degenerate humans do it"), will starve them for "training" purposes, and don't get me started on the diets, environment safety and cage sizes.

There's a reason why the life expectancy of birds doesn't increase in captivity. People are really, really horrible with birds, and the more I read about people who "care" about birds the worse I feel for their birds.