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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]
Because of high mortality in the first year of life, a robin has an average life expectancy of 1.1 years; however, once past its first year, life expectancy increases. One robin has been recorded as reaching 19 years of age. [39] A spell of very low temperatures in winter can, however, result in higher mortality rates. [40]
'robin' (erithacos) [1]) is a genus of passerine bird that contains a single extant species, the European robin (Erithacus rubecula). The Japanese robin and Ryukyu robin were also placed in this genus (as Erithacus akahige and E. komadori ), but were moved to the genus Larvivora in 2006.
The scarlet robin is a territorial and monogamous species, and defends its nesting territories both from others of the same species and from pairs of the related flame robin. [7] Territories are established and breeding commences before the migratory flame robin arrives in its range (where the two co-occur). [ 7 ]
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They also appropriate nests of other mid-sized songbirds as long as these are placed in suitable spots; American robin nests are commonly used by blue jays, for example. Blue jays typically form monogamous pair bonds for life. Both sexes build the nest and rear the young, though only the female broods them.
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Susan Sarandon, Jack Robbins. Getty Images(2) Susan Sarandon has no problem poking fun at her son Jack Henry Robbins for being a nepo baby. “This is a day in my life,” Robbins, 34, captioned ...