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Peterson Field Guide to North American Bird Nests: A Field Guide Review

10,000 Birds

The guide covers over 650 species, most of the breeding birds in the United States (minus Hawaii) and Canada (like most guides with ‘North America’ in its title, it does not include Mexico or the Caribbean). Acorn Woodpeckers use both communal and cooperative breeding strategies which vary widely among family groups.

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Mitochondrial mysteries and splitting-lumping Yellow-rumped Warblers

10,000 Birds

The photo above is a breeding-plumaged Myrtle Warbler by Kelly Colgan Azar. 2011), which was previously assumed to be geographically restricted to Mexico in the black-fronted warbler. 2011; Milá et al. 2011) and where there is no observed break in nuclear markers across this zone. wing length; Brelsford et al.

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What does the Keystone XL Pipeline have to do with Birds?

10,000 Birds

About 3 billion of North America’s landbirds, 26 million of its waterfowl, and 7 million of its shorebirds breed here. There are nearly 100 species of which 50% or more of the entire population breeds in the Boreal Forest. This is a photograph of the same area in 2011. – depend on the Boreal Forest.

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Splitsville

10,000 Birds

Splits were once a much more subjective determination, based on differences in appearance, vocalizations, habits, and breeding preferences. Our Transvolcanic Jay was only split from the Mexican Jay in 2011; there is pressure to split the latter species into as many as three species more.

San Diego 185
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Leucistic Ruddy Duck Oxyura jamaicensis

10,000 Birds

The little stiff-tails are almost year-round at Jamaica Bay though almost all leave to breed in the summer and in the depths of winter, when the ponds are almost completely frozen, they tend to head for open water. Corey Mar 10th, 2011 at 6:59 pm Ruddy Ducks are great little ducks, wherever they show up. Go check it out!

Ducks 154
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Lest we Forget – BP Oil Spill 2010

10,000 Birds

Oil begins to wash up on the beaches throughout May and June of 2010 May 6, 2010 Oil washes ashore on the Chandeleur Islands off the Louisiana coast, an important nesting and breeding area for many bird species. October 26, 2011 BP is awarded a permit to drill another exploratory well in the Gulf of Mexico.

2010 245
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White-faced Ibis at Colusa National Wildlife Refuge

10,000 Birds

Being winter, this bird is in non-breeding plumage with more brown upper parts and lacking the white face it acquires in its aternate (breeding) plumage. Mar 2nd, 2011 at 3:03 pm What a fortuitous stop Larry! Corey Mar 2nd, 2011 at 7:57 pm These shots are great. Dawn Fine Mar 4th, 2011 at 8:31 pm Nice shots Larry!

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