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National Audubon Society Birds of North America: A Guide Review

10,000 Birds

And now we have the third iteration in Audubon’s guide book history: National Audubon Society Birds of North America. The National Audubon Society Birds of North America covers all species seen in mainland United States, Canada and Baja California. But this is not the purpose of a guide about North American birds.

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

10,000 Birds

Importantly, the paper offers support for the hypothesis that the ancestor of the entire clade came to North America by way of Beringia — the land bridge between Siberia and Alaska exposed at various times through Earth’s history. The paper is by leading researchers F. Keith Barker, Kevin J. Lanyon, and Irby J.

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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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Red-necked Phalarope, Globetrotter Extraordinaire

10,000 Birds

Scientists who attached tracking devices to 10 of the birds in 2012 were shocked to discover that one had flown west across the Atlantic Ocean, and eventually settled down on the shores of the Pacific Ocean in South America. Along the wayward route, the Phalarope made stops in Iceland, Greenland, the continental U.S.,

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A Guide to Some Possible Bird Species Splits in Costa Rica

10,000 Birds

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). Bird species that require further research. A Common Chlorospingus from Costa Rica.

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Arizona, or Central Mexico?

10,000 Birds

A quick study as I researched this post revealed that fully 37 Arizonan “specialties” are common birds right here where I live. So the only Patagonia I would choose to visit in the future, is the Patagonia to be found at the southern end of South America. Consider the striking Berylline Hummingbird.

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Potpourri of Amazing Bird Science

10,000 Birds

If this was America, we might not be concerned because starlings are an invasive species, at least in North America. Researchers are wondering if the die-off might spread to other birds or even fish. This is not something I needed to tell you but there is some new research. But not at all unexpected, really. __.

Science 151