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The origins of tanagers, warblers, and sparrows are coming into focus

10,000 Birds

A new paper out this month attempts to paint the most comprehensive picture yet of the origins and diversification of the American sparrows, wood-warblers, blackbirds, cardinals, tanagers, and their kin, an enormous group of birds more than 800 species strong. The paper is by leading researchers F. Keith Barker, Kevin J.

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Warblers that Warble

10,000 Birds

Like the Common Yellowthroat , the Yellow Warbler breeds no further south than the central Mexican highlands. But as I started to research this post, I was reminded that I actually live in the center of this Warbler’s range. southwest, but it is a permanent resident in western Mexico and parts of Central America.

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Birds of Chile – A Photo Guide

10,000 Birds

Guiding aside, Howell is a research associate at the California Academy of Sciences and the author of many books, including Petrels, Albatrosses, and Storm-Petrels of North America (Princeton). Birds of Chile – A Photo Guide has 240 pages and more than 1,000 photos accompanied by a brief text to make bird ID easy. .

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A Guide to Some Possible Bird Species Splits in Costa Rica

10,000 Birds

This bunch of possible Costa Rican crypto birds can be grouped into four main categories: (1). Taxa that could end up being split into one species occurring north of the Isthmus of Tehuantepec, and one south of the isthmus. (2). A species that lives in both Costa Rica and South America but might be two separate species. (3).

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How Birds Evolve: What Science Reveals about Their Origin, Lives, and Diversity: A Book Review by a Non-Science Person

10,000 Birds

He also believes that we are living in an era of incredible scientific research, one in which new genetic technology and findings from diverse scientific disciplines have turned assumptions upside down, opened up new lines of thought, and provided answers, or at least probable answers, to many of our questions about why birds do the things they do.

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How to Help Cerulean Warblers, Other Migrant Species, and Resident Birds in Costa Rica

10,000 Birds

A wonderful variety of bird species are waiting to be seen and among them are many a birder’s favorite avian group, the wood-warblers. Participate in the Rainforest Biodiversity Group’s annual bird-a-thon. How will you help Cerulean Warblers and other migrants flying to and from South America?

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Searching for the Elusive and Less-Colorful: The Sinaloa Martin

10,000 Birds

They packed up in June of 2013 and headed south from San Diego with the southern tip of South America as their destination. The non-breeding distribution is virtually unknown, although they are suspected to winter in northern South America (Howell and Web 1995).