Other calls&colon; barking and chuckling, similar to the eastern screech owl. Birds include cardinals, downy woodpecker, wood duck and eastern screech owl. They were previously considered to be the same species as the eastern screech owl. Additionally, the feathers the eastern screech owl uses to fly are serrated at their tips. The IUCN has classed the Santa Marta screech owl as Vulnerable. The type species is the eastern screech owl ("Megascops asio"). The Puerto Rican screech owl, however, is just a slightly aberrant "Megascops".