Dacto

Dactos are recurring enemies in the Legend of Zelda series. They are birdlike reptilian monsters, pinkish in color, with a horn growing from their forehead and a crest on the back of their head. They usually wait on trees or ledges and fly down to attack Link when he walks near.

Dactos are closely related to Ravens. In Japan, both Dactos and Ravens are referred to with the same name, Kyune.

The Legend of Zelda: A Link to the Past
Dactos are the Dark World counterparts of Crows. They deal six times as much damage as Crows and take twice as much damage to defeat. Unlike Crows, they will continue to attack Link until he defeats them or leaves the screen, rather than flying away.

They were never officially named in A Link to the Past, and were often called Ravens due to the shared Japanese name before A Link Between Worlds gave them an official name.