Barn owls don't lose their hearing with age, scientists find
If ageing humans had ears like those of barn owls they would never need hearing aids, scientists have shown.
The birds, whose sensitivity to sound helps them locate prey, suffer no hearing loss as they get older. Like other birds – but unlike mammals, including humans – they are able to regenerate cells in their inner ears.
Aged birds experience minimal hearing loss, but the new research shows that the barn owl suffers no meaningful loss at all. In contrast, a human will have lost more than 30 decibels of sensitivity to high-sound frequencies by the age of 65.
Testing showed no statistical difference between the hearing ability of young and very elderly captive barn owls up to 23 years old.
The team, led by Dr Ulrike Langemann from the University of Oldenburg in Germany, wrote in the journal Proceedings of the Royal Society B: “Overall, our data … indicate that barn owl ears do not deteriorate with age.
https://www.theguardian.com/environment/2017/sep/20/barn-owls-dont-lose-their-hearing-with-age-scientists-find
owl. tsi-gi-li
= new reply since forum marked as read
I heard the sound of wings through my kitchen window and went out to investigate. I'm keen on birds and do notice wing sounds. Different birds have different flutters, depending on body size/wings.
He turned his head to look at me and we stared at each other a bit. He settled onto his perch better, turned toward the tree line again, quietly looking for prey.
Cottontails had a habit of coming to my yard at night to feed. Poor bunnies. 
