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For example, the male great-tailed grackle is 60% heavier than the female. The smallest icterid species is the orchard oriole , in which the female averages 15 cm in length (6 in) and 18 g (0.040 lb) in weight, while the largest is the Amazonian oropendola , the male of which measures 52 cm (20 in) and weighs about 550 g (1.21 lb).
The yellow-headed blackbird (Xanthocephalus xanthocephalus) is a medium-sized blackbird with a yellow head. It is the only member of the genus Xanthocephalus . Their scientific name derives from the Greek word for yellow, xanthous , and the word for head, cephalus .
It is sexually dimorphic, and the sexes resemble the respective sexes of the larger yellow-headed blackbird of North America, though the male yellow-hooded blackbird lacks white in the wings. In 2007, one was found in the Darien Lowlands of Panama. This was a rare vagrant, most likely from Colombia. [2]
The female is brownish-grey with slight hints of the male's iridescence. The female's eye is dark brown, while the male's is bright yellow. Overall, they resemble the eastern member of the same genus, the rusty blackbird; Brewer's blackbird, however, has a shorter bill and the male's head is iridescent purple. [2]
The common blackbird (Turdus merula) is a species of true thrush.It is also called the Eurasian blackbird (especially in North America, to distinguish it from the unrelated New World blackbirds), [2] or simply the blackbird where this does not lead to confusion with a similar-looking local species.
Scarlet-headed blackbirds are monogamous, and territories are grouped together. The nest is an open cup placed in the crotch of a shrub or woven into vegetation, in which they lay two eggs . [ 3 ]
Male Female. The male unicolored blackbird is befitting of its name, with entirely glossy black plumage and dark eyes. However, the species exhibits sexual dimorphism; the female is streaked brown and black with a yellow belly streaked with brown. The face has a dark mask and the wings are reddish-brown edged with black.
The yellow-winged blackbird (Agelasticus thilius) is a species of bird in the family Icteridae. It is found in Argentina , Bolivia , Brazil , Chile , Paraguay , Peru , and Uruguay . Its natural habitats are swamps , intertidal marshes , and pastureland.