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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 once knew a guy who kept and raised cats. I find it astonishing that people argue of whether feral cats are bad for birds in North America. In North America, you’ve got Bears at the large end, Cats in the middle, and at the smaller end, the Mustilids.

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Cavity Nesting Birds of North America and Their Babies!

10,000 Birds

Now the only falcon that regularly nests in natural cavities is the smallest and most common falcon in North America, the American Kestrel ( Falco sparverius ). The majority of our owls in North America also nest in cavities and I want to wrap this up with a few of my favorites, starting with the Barn Owl ( Tyto alba ).

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Review: Petrels, Albatrosses & Storm-Petrels of North America

10,000 Birds

The first 50 pages of this near 500-page volume should be made compulsory reading for anyone planning to go look for sea-birds, long before they ever raise a pair of bins at a distant passing shearwater. There are good photographic guides and a great many bad ones. Crammed with detail, from it’s introductory ‘What are Tubenoses?’

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What Do Nesting Birds Do With All That Poop?

10,000 Birds

I don’t know how many of you ever raised chickens but the old joke went something like this. v=fHSgyxRQXvg References: 1 Birds of North America Online _ Poop Week is a week of themed posts on 10,000 Birds that cover the intersection of poop and birding, a fertile precinct if there ever was one. www.youtube.com/watch?v=fHSgyxRQXvg

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The American White Pelican Scoops Up Fish As It Swims

10,000 Birds

They occur mainly in western and southern portions of North America, breeding inland in colonies on remote islands and wintering along warm southern coasts 1. They begin feeding by dipping that huge bill into the water and scooping prey into their pouch, water flowing out of the pouch as they raise it back up to horizontal.

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Goldfinches Coming, Orioles Leaving

10,000 Birds

Most birds have finished up raising young, but a few are in the thick of it like American Goldfinches. I’m fascinated how some birds stretch our their stay in North America for breeding and some like orioles are in and out relatively quickly. This is such a weird time of year at bird feeders.

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Western and Clark’s Grebes: Poetry in Motion

10,000 Birds

Note the raised crests as the female (on the left) turns to face the larger male (on the right). v=v1XAFo_uVgk References: 1 Audubon California ; 2 Birds of North America Online a. Like the breeding activity of many species this spring, the grebes were late, probably due to the unseasonable weather. www.youtube.com/watch?v=v1XAFo_uVgk