10,000 Birds
MAY 10, 2024
There are 154 species of cuckoos in the world, and they’re all a fascinating bunch. It’s not a species you are likely to overlook, either, as it is extremely noisy, its cackling call carrying great distances. Give it a few more years and there’s a good chance that it will be split into a full species, just like the Cyprus Scops Owl.
10,000 Birds
APRIL 2, 2024
Osborn, a passionate field biologist who participates to the core of her being three re-introduction projects aimed at saving three very different, endangered species: Peregrine Falcon, Hawaiian Crow (‘Alala)*, and California Condor. Sophie Osborn’s stories are personal and inspiring, but this is more than a personal memoir.
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10,000 Birds
JUNE 18, 2014
The featured image above shows a female incubating eggs from my first resident breeding pair back in 2007. Violet-green Swallows will nest solitarily or in colonies and in my experience seem much more mellow than other swallow species. The four to six eggs are white and unmarked. Click on photos for full sized images.
10,000 Birds
JULY 23, 2014
The northwestern spread of this non-native species made it to my yard a few years ago. The lightest shade of lavender coincides with a 0 – 2% frequency of sightings, the next darker shade 2 – 10%, the next 10 – 25%, the next 25 – 40% and the darkest (almost black) shade is a 40 – 100% occurrence of the species.
10,000 Birds
APRIL 2, 2013
The core of the book are the Species Accounts, 190 accounts by 52 authors, some names that readers will easily recognize, others birders and ornithologists well-known in Pennsylvania. You can see the Species Account for Henslow’s Sparrow above, in the banner photo. The second page is the map page. Brauning and Andrew M.
10,000 Birds
JULY 10, 2012
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.
10,000 Birds
NOVEMBER 5, 2013
The first, Field Guide to the Birds of Trinidad & Tobago, was published by Christopher Helm in London in 2007 and then published in the United States in 2008 by Yale University Press. The guide covers 477 species, an expansion of 35 from the second edition, which was published in 1991. The AOU has not accepted that split.
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