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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]
Robins can use up to 10% of their body weight to keep warm on a single winter night. But when temperatures drop and the ground freezes, finding food becomes very hard for the garden birds without ...
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 red-capped robin (Petroica goodenovii) is a small passerine bird native to Australia. Found in drier regions across much of the continent, it inhabits scrub and open woodland. Like many brightly coloured robins of the family Petroicidae, it is sexually dimorphic. Measuring 10.5–12.5 cm (4.1–4.9 in) in length, the robin has a small, thin ...
The female scarlet robin has a more pronounced red flush to the breast and the spot on the forehead above the bill is more prominent and white rather than off-white. [13] The flame robin's calls are grouped into louder and quieter calls; the former can be heard from 150 m (490 ft) away, while the latter, which are often briefer, from 30 m (98 ...
The jacky winter (Microeca fascinans) is a small grey-brown robin found commonly throughout Australia and also in Papua New Guinea. The jacky winter acquired its name due to rapid and strong vocalisations, which sound like jacky-jacky winter-winter. [2] Their call is also often referred to as sounding like peter-peter-peter. [3]
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Black robins live in low-altitude scrub forest remnants. They are entirely insectivorous, feeding on the forest floor or on low branches, and preferring to nest in hollow trees and tree stumps. To shelter from the strong winds and rough seas around the islands, they frequent the lower branches of the forest, or in flat areas with deep litter ...