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Second Atlas of Breeding Birds in Pennsylvania: A Review by an Atlas Novice

10,000 Birds

A breeding bird atlas is a special kind of book. For the nature lovers and birders who participate in breeding bird surveys, the atlas represents hours, often hundreds of hours, of volunteer time spent within a community of citizen scientists doing what they love, observing birds. So, what exactly does a breeding bird atlas contain?

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Africa’s endangered species

10,000 Birds

More than 150 bird species are known to have become extinct over the past 500 years, and many more are estimated to have been driven to extinction before they became known to science. The Gray Crowned-Crane is a new addition to the list of the world’s Endangered species, creeping up a category from Vulnerable.

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Is The Hooded Grebe About To Go Extinct?

10,000 Birds

Twenty two species are distributed among six genera, depending on what happens to be extinct, and for the most part one grebe is like another. This makes Grebes vulnerable to climate change and the predation of invasive species. It is easy to see how Minks set lose in a welcoming habitat could eat an entire species.

2010 205
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Into the Nest: A Book Review in the Time of Nesting

10,000 Birds

Third, observing and photographing breeding birds and their young have become acts of ethical confusion as birders, photographers, and organizational representatives debate the impact of our human presence on the nesting process. And of eggs and nests and birds on nests. Some people love books like that. Peregrine Falcon nests.

Eggs 263
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Polyandry and Polygynandry on the Tundra

10,000 Birds

One of the more interesting aspects (in my opinion) of breeding in birds is their mating strategy. The most common mating strategy in birds is social monogamy, found in roughly 92% of birds species in the world (Jenni 1974, Owens 2002). of all bird species, is polyandry. Polyandry is found mostly in shorebirds (e.g.

2002 169
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African Penguins in Peril

10,000 Birds

The birdlife in the Cape is nothing short of spectacular, with a healthy dose of charismatic endemic species. Over 40 species of South African endemics can be found in the Cape – Cape Sugarbirds, Cape Rockjumpers, Orange-breasted Sunbirds to name but a few. White Sharks, especially young ones, will prey on African Penguins.

Penguins 222
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The Brown and Peruvian Pelicans

10,000 Birds

The Brown Pelican and the Peruvian Pelican are closely related and once were considered the same species. Brown Pelicans in non-breeding plumage. Both are the only Pelican in their non-overlapping breeding grounds. Peruvian Pelican in non-breeding plumage. Brown Pelican in Breeding Plumage.

Pelicans 157