NEW DELHI — Sitting in his basement, below the crowded dirt roads of Wazirabad village, Mohammad Saud leaned over the body of an injured black kite.

The room was cramped, its walls chipping blue paint, the noise from the streets above drowned out by the whir of a fan. Mr. Saud stared at the bird in front of him for a couple of seconds, then gently folded its wing over with a gloved hand. At least two bones, four tendons and two muscles had been snapped. The bird’s head tilted back limply, eyes cloudy. Mr. Saud adjusted his glasses with the crook of his elbow, then stated the obvious: “This is a gone case. Nothing can be done.”

Mr. Saud placed the kite back into a thin cardboard box. As he did so, Salik Rehman, a young employee of Mr. Saud, reached into a different cardboard box and pulled out another black kite. This bird’s right wing was wrapped in a gauze bandage stained with dried blood and pus. Mr. Saud examined it briefly. Another gone case, he concluded; it would have to be euthanized.

Fourteen more cardboard boxes surrounded them, each filled with a black kite that Mr. Rehman, Mr. Saud and Nadeem Shehzad, Mr. Saud’s brother, had collected earlier in the day from animal hospitals around New Delhi. The three men, along with a part-time veterinarian, comprise a bird rehabilitation organization called Wildlife Rescue that treats more than 2,000 birds of prey a year.