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The shiny cowbird is a year-round resident across most of South America, where it lives in open areas such as open forests and cultivated land. [2] Within the last century, the range of the species has shifted northward, and birds have been recorded in the West Indies and southern Florida. [ 3 ]
Screaming cowbird: Molothrus rufoaxillaris Cassin, 1866: 71 Giant cowbird: Molothrus oryzivorus (Gmelin, JF, 1788) 72 Shiny cowbird: Molothrus bonariensis (Gmelin, JF, 1789) 73 Bronzed cowbird: Molothrus aeneus (Wagler, 1829) 74 Bronze-brown cowbird: Molothrus armenti Cabanis, 1851: 75 Brown-headed cowbird: Molothrus ater (Boddaert, 1783) 76 ...
The female cowbird may continue to observe this nest after laying eggs. Some bird species have evolved the ability to detect such parasitic eggs, and may reject them by pushing them out of their nests, but the female cowbird has been observed to attack and destroy the remaining eggs of such birds as a consequence, dissuading further removals. [8]
Some cowbird species engage in brood parasitism; females lay their eggs in the nests of other species, in a similar fashion to some cuckoos. [3] Some species of icterid have become agricultural pests; for example, red-winged blackbirds in the United States are considered the worst vertebrate pests on some crops, such as rice. [6]
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Cipó canastero Conservation status Near Threatened (IUCN 3.1) Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Class: Aves Order: Passeriformes Family: Furnariidae Genus: Asthenes Species: A. luizae Binomial name Asthenes luizae Vielliard, 1990 The Cipo canastero (Asthenes luizae) is a Near Threatened species of bird in the Furnariinae subfamily of the ovenbird ...
Terns are a group of generally medium to large seabirds typically with grey or white plumage, often with black markings on the head. Most terns hunt fish by diving but some pick insects off the surface of fresh water. Terns are generally long-lived birds, with several species known to live in excess of 30 years.
The adults are very aggressive towards other birds invading their territories and this may be why shiny cowbird (molothurus bonairensis) nest parasitism was not recorded for this species. It is a sedentary species, unlike the related gray kingbird ( T. dominicensis ) and it will move into the preferred habitat of the gray kingbird when the ...