H.J. Ruiz – Avian101

Gray Catbird – Latin name: Dumetella carolinensis

Is a medium-sized northern American perching bird of the mimid family. It is the only member of the “catbird” genus Dumetella. Like the Black Catbird (Melanoptila glabrirostris), it is among the basal lineages of the Mimidae, probably a closer relative of the Caribbean thrasher and trembler assemblage than of the mockingbirds and Toxostoma thrashers. In some areas it is known as the Slate-colored Mockingbird.

Adults weigh from 23.2 to 56.5 g (0.82 to 1.99 oz), with an average of 35–40 g (1.2–1.4 oz) They range in length from 20.5 to 24 cm (8.1 to 9.4 in) and span 22 to 30 cm (8.7 to 12 in) across the wings. Among standard measurements, the wing chord is 8.4 to 9.8 cm (3.3 to 3.9 in), the tail is 7.2 to 10.3 cm (2.8 to 4.1 in), the calmed is 1.5 to 1.8 cm (0.59 to 0.71 in) and the tarsus is 2.7 to 2.9 cm (1.1 to 1.1 in). Gray Catbirds are plain lead gray almost all over. The top of the head is darker. The undertail coverts are rust-colored, and the remiges and rectrices are black, some with white borders. The slim bill, the eyes, and the legs and feet are also blackish. Males and females cannot be distinguished by their looks; different behaviours in the breeding season is usually the only clue to the observer. Juveniles are even plainer in coloration, with buffy undertail coverts.

This species is named for its cat-like call. Like many members of the Mimidae (most famously mockingbirds), it also mimics the songs of other birds, as well as those of Hylidae (tree frogs), and even mechanical sounds. Because of its well-developed songbird syrinx, it is able to make two sounds at the same time. The alarm call resembles the quiet calls of a male mallard.

A Gray Catbird’s song is easily distinguished from that of the Northern Mockingbird (Mimus polyglottos) or Brown Thrasher (Toxostoma rufum) because the mockingbird repeats its phrases or “strophes” 3 to 4 times, the thrasher usually twice, but the catbird sings most phrases only once. The catbird’s song is usually described as more raspy and less musical than that of a mockingbird.

In contrast to the many songbirds that choose a prominent perch from which to sing, the catbird often elects to sing from inside a bush or small tree, where it is obscured from view by the foliage.

Native to most of temperate North America east of the Rocky Mountains, Gray Catbirds migrate to the southeastern United States, Mexico, Central America, and the Caribbean in winter; except for the occasional vagrant they always stay east of the American Cordillera. They are extremely rare vagrants to western Europe. Normally present on the breeding grounds by May, most leave for winter quarters in September/October; as it seems, this species is increasingly extending its stay in the summer range, with some nowadays remaining until mid-winter as far north as Ohio.

NOTE: The Gray Catbird is a new addition to my Bird List as: # 190

Text © Wikipedia – Photographs © H.J. Ruiz – Avian 101