Shriek-hawk/Legends

The shriek-hawk, known in Mando'a as the jai'galaar, was an avian predator.

Its name in Basic was derived from the raptor's rather disturbing shrieking noise. The Mandalorian award of Jaig eyes was named for the jai'galaar, and CT-55/11-9009 took the creature's name as his own.

Sources
 * Star Wars Insider 
 * The Mandalorians: People and Culture