Birds devote little time to mating. This sequence of four pictures showing Tree Swallows spanned two seconds.
The female Tree Swallow crouches low and lifts her tail as the male approaches.
He lands on her back as she spreads her cloaca.
The male wraps his tail under hers to align their cloacae. Each bird slightly everts its cloacal tissue.
Mating takes place with, what is known as, the cloacal kiss.
Amazing photos. I’ve read about and seen birds mate from the time I was a small girl and was always curious. Now I know! 🙂
Porn on the fly. Yep even birds do it