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Muscicapa carolinensisLinnaeus, 1766. Turdus felivoxVieillot, 1807. A Gray catbird stands in the grass. The gray catbird (Dumetella carolinensis), also spelled grey catbird, is a medium-sized North American and Central American perching bird of the mimid family. It is the only member of the " catbird " genus Dumetella.
Turdus glabrirostris Gray, 1869[ 2] The black catbird ( Melanoptila glabrirostris) is a songbird species in the monotypic genus Melanoptila, part of the family Mimidae. At 19–20.5 cm (7.5–8.1 in) in length and 31.6–42 g (1.11–1.48 oz) in mass, it is the smallest of the mimids. Sexes appear similar, with glossy black plumage, black legs ...
Catbird. White-eared catbird. Gray catbird. A gray catbird voicing cat-like sounds at Wildwood Preserve Metropark, Ohio, US. Several unrelated groups of songbirds are called catbirds because of their wailing calls, which resemble a cat 's meowing. The genus name Ailuroedus likewise is from the Greek for 'cat-singer' or 'cat-voiced'.
The green catbird (Ailuroedus crassirostris) is a species of bowerbird found in subtropical forests along the east coast of Australia, from southeastern Queensland to southern New South Wales. It is named after its distinctive call which sounds like a cat meowing, although it has also been mistaken for a crying child.
Sex differences in human physiology are distinctions of physiological characteristics associated with either male or female humans. These differences are caused by the effects of the different sex chromosome complement in males and females, and differential exposure to gonadal sex hormones during development. Sexual dimorphism is a term for the ...
Description. The Abyssinian catbird is a small-sized babbler. Its body is round with relatively short wings and legs. The bird's belly is white, but its upper parts are a lighter shade of grey that gradually fades to a darker shade moving to the backside of the bird. The head of the bird is a light shade of grey with dark highlights surrounding ...
Structurally, adult male brains are on average 11–12% heavier and 10% bigger than female brains. [21] Though statistically there are sex differences in white matter and gray matter percentage, this ratio is directly related to brain size, and some [ 22 ] argue these sex differences in gray and white matter percentage are caused by the average ...
Sexual dimorphism describes the morphological, physiological, and behavioral differences between males and females of the same species. Most primates are sexually dimorphic for different biological characteristics, such as body size, canine tooth size, craniofacial structure, skeletal dimensions, pelage color and markings, and vocalization. [1]