Birds engage in self-pleasure, and they seem perfectly content doing it alone. Recent findings indicate that birds are part of a broader group of animals that indulge in masturbation, a behavior more common than previously assumed.
According to a study published in The Conversation, “Avian self-pleasure is usually a rather inelegant affair, in which a bird rubs their cloaca (a shared orifice for both excretion and reproduction) against an object, like a branch, twig or toy.” This activity often involves vigorous flapping and satisfied vocal sounds.
Contrary to the belief that this behavior is a pastime for caged birds, research shows that wild birds enjoy it as well, possibly even more than those in captivity. This discovery prompts questions about the evolutionary benefits of masturbation in the animal kingdom.
While it is clear what the individual gains, the evolutionary perspective is perplexing. Masturbation consumes time, energy, and in males, sperm, which theoretically should hinder reproductive success, a key element of natural selection. Why, then, does evolution allow such widespread self-pleasuring activities?
Exploring the self-mating behaviors of birds might shed light on this scientific puzzle.
frameborder=”0″ allow=”accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share” referrerpolicy=”strict-origin-when-cross-origin” allowfullscreen>In a new study, evolutionary biologists from the Universities of Lancashire, Swansea, and Oxford in the UK analyzed data on 120 bird species from 22 major groups. The data included details such as age, sex, wild or captive status, social environment, and whether the species was monogamous or promiscuous.
Findings revealed that this behavior occurs broadly among birds, but the frequency varies. Male birds are more prone to engage in this activity, with 55 percent of male records showing masturbation, compared to 36 percent for females.
Breeding behaviors also influenced the tendency to masturbate. Socially monogamous birds and those with long-term pair bonds were less likely to self-pleasure than species with multiple partners. Age and social setting did not appear to impact this behavior.
Surprisingly, wild birds were more inclined to engage in self-pleasure than captive birds, challenging the assumption that this behavior is mainly due to solitary living conditions in captivity.
Chloe Heys, a biologist at the University of Lancashire, states, “Despite assumptions that masturbation among captive birds like parrots is a result of their often-solitary living, our study finds that it is natural, healthy, and widespread across diverse bird species, even in different environments.”
This understanding suggests that pet owners need not worry if they observe their birds engaging in such behavior. Traditionally, veterinarians have advised against it, considering it a sign of stress or poor health. However, it seems all the bird needs is some privacy.
Researchers found that masturbation among birds is concentrated within specific branches of their family tree, hinting at an evolutionary basis for the behavior rather than isolated discoveries by individual species.
Several hypotheses attempt to explain why evolution hasn’t eliminated this behavior. For males, it might help eliminate old sperm, ensuring more viable ones for future reproduction. Females might use it to expedite a mating encounter with another bird before their primary partner discovers them.
Alternatively, the simplest explanation might be that masturbation serves as a sexual outlet for a high sex drive. The researchers write in their study, “Our findings indicate that the proximate mechanism of masturbation may be to serve as a sexual outlet in response to a high sex drive.”
Autoeroticism is not limited to birds; it’s prevalent throughout the animal kingdom. Monkeys in Indonesia have been seen using rocks, dolphins engage with dead fish, elephants partake in self-care, and walruses use their flippers and exhibit surprising flexibility.
Related: Sexual Activity Before Bed Can Help You Sleep Better
There’s no stigma attached to it, as more research suggests that self-indulgence is beneficial. The recent study is published in the journal Ecology and Evolution.
