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The nest is generally placed in a lawyer vine up to 10 m (30 ft) above the ground. A clutch of one or two eggs is laid. The eggs are buff, cream- or dark greenish-white, and marked with light brown splotches and spots, usually concentrated around the large end, and they measure 26 by 19 mm. [8]
[37] [38] 28 raptorial bird species hunt American robins. [39] [40] Adult robins are most vulnerable while breeding activities, whereas feeding flocks are vigilant for predators. [16] 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]
Only the female will incubate the eggs, while the male will help feed the young once they have hatched. 92 per cent of the time, the female will lay only two eggs per clutch. [14] It is uncommon for this number to vary, since many different environmental factors determine the number of eggs per clutch in order to maximize the survival rate of ...
Illustration of the black robin, the Chatham fernbird, and Lyall's wren, extinct birds from its region, by John Gerrard Keulemans. The black robin is a small, sparrow-sized bird measuring 10–15 centimetres (3.9–5.9 in). Its plumage is almost entirely brownish-black, with a black bill and brownish-black yellow-soled feet.
To add to this, even birds who will nest in houses don't all enjoy the same type of house. For instance, many owls prefer a nesting box versus a traditional bird house. If there's a specific bird ...
Breeding occurs throughout the range of the buff-sided robin, with most breeding and nesting activity occurring across the warmer months and wet season between October and March, [13] [15] [24] [27] [31] [32] with occasional dry season nesting records. [10] Clutch size is generally two and eggs range in size from 17.8 to 20.3 mm (0.70 to 0.80 ...
In the 1960s, in a vote publicised by The Times, the robin was adopted as the unofficial national bird of the United Kingdom. [55] In 2015, the robin was again voted Britain's national bird in a poll organised by birdwatcher David Lindo, taking 34% of the final vote. [56] Several English and Welsh sports organisations are nicknamed "the Robins".
Some eggs are blotched with dark reddish-brown at the large end. They are about 0.76–0.84 inches (1.9–2.1 cm) long and 0.55–0.62 inches (1.4–1.6 cm) wide. [28] Three to four eggs is the usual clutch. [36] An abnormal clutch of seven has been noted, although none of the eggs hatched at this nest. [37]