Eric Klein has positioned himself as a vigilante of sorts in his Austin, Texas neighborhood. He caught an attack on camera, and he’s actively plotting methods to keep himself and his neighbors safe.

But Klein isn’t fighting a person. His ire is drawn by a group of swift, winged perpetrators who have made their homes in the trees high above his. If Batman gets his name from his fear of bats, Klein is South Austin’s Hawkman.

The hawks’ presence briefly halted mail delivery in parts of the neighborhood and has caused residents to fear leaving their homes. Multiple people have been attacked by the birds, which use their talons to scratch the heads, necks and backs of those running down the street, mowing their lawns or walking to their cars.

On several occasions, those attacks have drawn blood.

“They’re majestic, beautiful animals, but like, it sucks,” said Alfredo Del Barrio, who lives in the house behind the hawks’ tree. “We can’t even walk out to an Uber. I run out to Ubers with my arms covering my head.”

The hawks have inhabited trees in the neighborhood for at least three years, residents told the Austin American-Statesman. They’ve been seen from early March through mid-July, tending to their nests and feeding their hatchlings. No one has positively identified the species, though some have guessed they are red-shouldered or broad-winged hawks.

The birds’ territorial behavior is likely a result of efforts to protect their young, said Jessica Alderson, urban wildlife technical guidance program leader at the Texas Parks and Wildlife Department. They usually choose to nest in environments in which they feel comfortable raising their fledglings without potential threats, but that’s not always the case. Nests built near residential areas are common, Alderson said, and the hawks are reacting to humans the way they would to any predator.

Residents believe the hawks have left their nests in the neighborhood for the year, but their absence has done little to mitigate the effects of their attacks.

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Hawk attacks pause mail delivery, force residents to adapt

In early July, Axios Austin reported the U.S. Postal Service had temporarily paused mail delivery services on Milam Place and Kenwood Avenue in the South Austin neighborhood of Travis Heights due to hawk attacks. Homeowners were instructed to pick up their mail at the South Congress Post Office until the issue was resolved.