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The eastern screech owl is now one of 22 screech owls placed in the genus Megascops that was introduced in 1848 by the German naturalist Johann Kaup. [9] Five subspecies are typically recognised for the eastern screech owl, but the taxonomy in the species is considered "muddled". Much of the variation may be considered clinal, as predictably ...
Bearded screech owl: Megascops barbarus (Sclater, PL & Salvin, 1868) 211 Pacific screech owl: Megascops cooperi (Ridgway, 1878) 212 Western screech owl: Megascops kennicottii (Elliot, DG, 1867) 213 Eastern screech owl: Megascops asio (Linnaeus, 1758) 214 Balsas screech owl: Megascops seductus (Moore, RT, 1941) 215 Middle American screech owl
Screech owls are typical owls belonging to the genus Megascops with 22 living species.For most of the 20th century, this genus was merged with the Old World scops owls in Otus, but nowadays it is again considered separately based on a range of behavioral, biogeographical, morphological, and DNA sequence data.
The barred owl is a serious predator of eastern screech owls, but is less deadly to them in general than the great horned owl. [206] Various additional owl species known to be preyed upon by barred owls including the flammulated owl ( Psiloscops flammeolus ), [ 207 ] northern pygmy owl ( Glaucidium gnoma ), [ 123 ] northern saw-whet owl ...
The Pacific screech owl has sometimes been treated as a race of western screech owl (Megascops kennicottii) or eastern screech owl (M. asio) but its vocalizations are distinct from theirs. Two subspecies are recognized, the nominate M. c. cooperi and M. c. lambi. The latter has also sometimes been treated as a separate species.
The primary call is an accelerating series of short whistles at an increasing tempo or a short then long trill falling slightly at end. Other calls: barking and chuckling, similar to the eastern screech owl. [6] They also make a high pitched screech. The two primary songs for the Western Screech Owl are the bounce and double trill.
Eastern screech owl: Megascops asio: 560,000 [75] LC [75] [75] Elf owl: Micrathene whitneyi: 72,000 [76] ... This subspecies is included under Tyto novaehollandiae ...
At the subspecies level, M. a. obscurus is sometimes considered a color morph of M. a. meridensis or M. a. remotus. The population of rufescent screech owl (Megascops ingens) in eastern Ecuador has sometimes been considered to be another subspecies of white-throated screech owl (M. a. aequatorialis) or be part of the nominate M. a. albogularis. [5]