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Feral Cats Are An Invasive Species in North America (and elsewhere)

10,000 Birds

But they don’t live in North America. I new him because we enlisted his Dryfus Lion and one of his tigers to carry out experiments with bones (this is something archaeologists do). I find it astonishing that people argue of whether feral cats are bad for birds in North America. Unless we put them there.

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Peterson Reference Guide to Sparrows of North America: A Review by a Sparrow Fan

10,000 Birds

I like observing them, reading about them, grappling with species and subspecies identification, and even—on a good day—talking about sparrow taxonomy. Peterson Reference Guide to Sparrows of North America covers 61 species of the New World sparrow family Passerellidae that breed in Canada, the United States, and northern Mexico.

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Birding Villahermosa’s Urban Parks

10,000 Birds

Being a westerner — raised in California, and now living in western Mexico — I was perhaps most excited about the migratory birds that breed in eastern North America. This was only my fourth encounter with the species (all on the east side). Although, truth be told, this species does seem to be a rarity in Tabasco.)

Mexico 205
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Bird Talk: An Exploration of Avian Communication–A Book Review

10,000 Birds

There was a time when I thought each bird species had its own individual song. Then I found out that there was this vocalization called a ‘call,’ so I thought each bird species had its own individual song (but just the males) and individual call. Bird communication is a complex and evolving science. How do they know?

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Best Bird of the Weekend (Last of May 2013)

10,000 Birds

When it comes to New World flycatchers, empids tend to irritate me for the same reasons they irritate everyone, but species in the genus Contopus make me much happier for inexplicable reasons. If you’ve blogged about your weekend experience, you should include a link in your comment. How about you? Birding best bird weekend'

2013 181
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Turtles of the World: A Guide To Every Family–A Book Review by a Turtle Lover

10,000 Birds

At the very least appreciated for their hard-shell adaptation, the way they quietly survive in ponds, rivers, oceans, islands, forests, even, for a few species, deserts, and, if you are of a certain age, their cultural depiction as ninja warriors. Or that tortoises and terrapins are considered part of the turtle family.

Turtles 206
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Violet-green Swallows Take Up Residence on my Bluebird Trail

10,000 Birds

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.

Eggs 163