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In autumn and winter, robins will supplement their usual diet of terrestrial invertebrates, such as spiders, worms and insects, with berries, fruit and seeds. [ 29 ] [ 33 ] They will also eat seed mixtures and suet placed on bird-tables, as well as left-overs.
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 ...
Providing the right environment. Providing birds with a safe and warm space is just as vital as extra food at this time of year. "Robins often use nest boxes as roosting sites during the winter ...
[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]
"Leave the leaves, brush, and stems in place over the winter because birds eat the seed heads, pull the stems and twigs for shelter, and many of our beneficial pollinators, like solitary bees ...
Although, like all Australian robins, it is not closely related to either the European robin or the American robin. [14] Gould had called it 'white-bellied robin' in 1848, and other terms used included grey-breasted or white-breasted shrike-robin from the late 19th and early 20th centuries. The 'shrike-' prefix was dropped by the RAOU in 1926. [15]
The smallest of the red robins, the red-capped robin is 10.5–12.5 cm (4.1–4.9 in) long with a wingspan of 15–19.5 cm (5.9–7.7 in), and weighs around 7–9 g (0.25–0.31 oz). Males and females are of similar size. It has longer legs than the other robins of the genus Petroica. The male has a distinctive scarlet cap and breast.
The South Island robin is a small passerine, 10–18 cm in length and weighing around 35 g. North Island robins do resemble both females and juveniles of the South Island robins, as well as all the Stewart Island robins, which can sometimes make it difficult to distinguish between the three.