Tricoloured Blackbird

This highly social and gregarious bird forms the largest colonies of any North American landbird, with a single breeding colony often consisting of tens of thousands of birds.

The Tricoloured Blackbird is classified as Endangered (EN), considered to be facing a very high risk of extinction in the wild.

Historically, the tricoloured blackbird bred in lowland freshwater marshes. Today, as much of this species’ wetland habitat has been converted for agriculture, it can more commonly be found nesting in grain silage, as well as in thickets of the non-native Himalyan blackberry (Rubus discolor) in upland regions (3). More

Male tricoloured blackbird in breeding plumage Male tricoloured blackbird in breeding plumagePrint factsheet Facts - Kingdom Animalia Phylum Chordata Class Aves Order Passeriformes Family Icteridae Genus Agelaius (1) Size Length: 18 – 24 cm (2) More

The Tricolored or Tricoloured Blackbird, Agelaius tricolor, is a passerine bird of the family Icteridae. Its range is limited to the coastal areas of the Pacific coast of North America, from Northern California in the U.S. (with occasional strays into Oregon), to upper Baja California in Mexico. This highly social and gregarious bird forms the largest colonies of any North American landbird, with a single breeding colony often consisting of tens of thousands of birds. More

The estimated global population of Tricoloured Blackbirds is 250,000 to 300,000 birds, with at least 95% of these occurring in California. Tricoloured Blackbirds have declined dramatically in the past century as native wetland habitat has been lost and the species has consequently been classified as Endangered. Tricoloured Blackbirds form just a few large nesting colonies each year, and in most cases these occur in crop fields. This puts the colonies in grave danger when farmers cultivate the field before young birds are able to fly. More

Tricoloured Blackbird Sunset Rome at night View Entire Portfolio © 1996-2010 NameMedia, Inc. and contributors. Contributed content used with permission. Sign In | Site Map | Article Archive | Author Index | About Us | FAQ | Register | Subscribe | Support Photo. More

to 23 cm, the Tricoloured Blackbird’s length is 22 cm, and the Yellow-headed Blackbird’s length is 22 to 28 cm. L’oriole du Nord, le carouge de Californie et le carouge à tête jaune habitent les bocages, les prés, les pâturages et les marais d’eau douce, là où ils peuvent s’alimenter d’insectes, de graines et de fruits. L’oriole du Nord et le carouge à tête jaune ont pour territoires le sud du Québec et les Maritimes, bien que le carouge peut être observé jusqu’en Alaska. More

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to 23 cm, the Tricoloured Blackbird’s length is 22 cm, and the Yellow-headed Blackbird’s length is 22 to 28 cm. Musée de la civilisation, collection du Séminaire de Québec, The Birds of America, John James Audubon, 388/1993. More

Tricoloured Blackbirds in order to encourage the birds to nest in wetlands and other secure habitats as opposed to agricultural fields. Audubon California is part of a statewide working group, including public agencies, farmer and rancher organizations, conservation organizations, researchers from UC Davis and others to develop a comprehensive strategy to protect Tricoloured Blackbirds. More

Tricoloured Blackbird, the last of our real Californian target species. The fog lifts and we can actually see where we are. Moonglow is a working dairy farm, and a favourite spot for Tricoloured Blackbird (just like it says in the field guide). The owners are good enough to allow access to the site, and the excellent wetlands adjoining the Elkhorn Slough. Amongst the many waders found here are seven Pectoral and two Baird's Sandpipers. More