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The same nest site may be reused in subsequent years. [32] [41] An old anecdotal record of these birds laying their eggs in the nests of Turdoides babblers has not been supported by later observers. [42] Laboratory studies have demonstrated cyclic changes in the melanin pigmentation of the tissue surrounding the testes. The dark pigmentation is ...
The American robin rejects cowbird eggs, so brood parasitism by the brown-headed cowbird is rare, and the parasite's chick does not often survive to fledging. [41] In a study of 105 juvenile robins, 77.1% were infected with endoparasites, Syngamus sp. being the most commonly encountered, in 57.1% of the birds. [42]
Deep cup nest of the great reed-warbler. A bird nest is the spot in which a bird lays and incubates its eggs and raises its young. Although the term popularly refers to a specific structure made by the bird itself—such as the grassy cup nest of the American robin or Eurasian blackbird, or the elaborately woven hanging nest of the Montezuma oropendola or the village weaver—that is too ...
The nest is an untidy bowl-shaped structure made of grasses and leaves. It is located in tall grass or bushes, and the stems overhead are often tied together to make a canopy. Two to six white oval eggs measuring 38 by 29 mm are laid. [9] The incubation period is 15 days, with young remaining in the nest for another 13 days. [6]
Black robins will generally start to breed at two years of age. The female robin will make the nest, and while she lays and incubates the eggs, the male will feed the female for a rest. Eggs are laid between early October and late December. A second clutch may be laid if the first is unsuccessful.
The larger American robin (Turdus migratorius) is a much larger bird named from its similar colouration to the European robin, but the two birds are not closely related, with the American robin instead belonging to the same genus as the common blackbird (T. merula), a species which occupies much of the same range as the European robin. The ...
The flame robin (Petroica phoenicea) is a small passerine bird native to Australia. It is a moderately common resident of the coolest parts of south-eastern Australia, including Tasmania. Like the other two red-breasted Petroica robins—the scarlet robin and the red-capped robin—it is often simply called the robin redbreast.
The position of the red-capped robin is unclear; it and its relatives are unrelated to European or American robins, but they appear to be an early offshoot of the songbird infraorder Passerida. The red-capped robin is a predominantly ground-feeding bird, and its prey consists of insects and spiders. Although widespread, it is uncommon in much ...