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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.
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.
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
Adults occur in 2 color morphs, in either brown or dark grey plumage. They have a round head with ear tufts, yellow eyes and a yellowish bill. The bird looks very similar to a western screech owl, but has heavier barring on the breast, and is slightly smaller in size. They are 6.3 to 7.9 in and have a wingspan of 17.3 in.
The subspecies of the white-throated screech owl are found thus: [3] [5] M. a. obscurus, Serranía del Perijá on the northern Colombia/northwestern Venezuela border; M. a. meridensis, Andes of western Venezuela; M. a. macabrus, Colombia's Central and Western Andes south through Ecuador into Peru's Department of Cajamarca
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.
Western screech owl; Whiskered screech owl; White-throated screech owl; X. Xingu screech owl This page was last edited on 21 April 2017, at 23:36 (UTC). Text is ...
The nominate subspecies of West Peruvian screech owl is 20 to 22 cm (7.9 to 8.7 in) long and weighs 144 to 162 g (5.1 to 5.7 oz). It has both gray and rufous morphs. The former has a grayish facial disc with a black border, white brows above pale to golden yellow eyes, and small "ear" tufts. The crown is blackish brown and the upperparts gray ...