Eggs North America Raised 
10,000 Birds
JUNE 1, 2021
If you remember that the first edition of Sibley was published with “National Audubon Society” on the cover, raise your hand. And now we have the third iteration in Audubon’s guide book history: National Audubon Society Birds of North America. Plate 28 from Audubon Bird Guide, Eastern Land Birds, by Richard H.
10,000 Birds
JULY 18, 2012
Wood Duck ( Aix sponsa ) Female Incubating Eggs in a Nest Box “Many species of cavity-nesting birds have declined because of habitat reduction. This is the female incubating eggs in the nest box… and a couple of weeks later… then, at the ripe old age of 17 days, what’s going on out here?
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10,000 Birds
JULY 22, 2014
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.
10,000 Birds
JUNE 22, 2011
I don’t know how many of you ever raised chickens but the old joke went something like this. Here’s a photo of a House Finch nest before the eggs hatch and the hatchlings start producing fecal sacs. Well, as it turns out, it’s really uric acid (the white part of the poop). The dark part is undigested feces.
10,000 Birds
JUNE 2, 2015
And of eggs and nests and birds on nests. Into the Nest , as the title says, is about the courting, mating, egg-laying, nesting, and parenting behavior of “familiar birds”. Cedar Waxwings exchange berries, carry nesting material, eggs. Egg biology, from Part I. Oops, the curmudgeon in me slipped.) Peregrine Falcon nests.
10,000 Birds
APRIL 30, 2013
In North America, at least in the eastern part of it, we celebrate the return of the Baltimore Oriole to parks and farms this time of year. This revelation shocked me when I first read it, but as it it turns out the troupial is not one of those next parasites and lays and leaves like North American cowbirds and cuckoos in Europe.
10,000 Birds
JUNE 3, 2020
But when raised, they seem to have a sort of weird cape. In other words, they never raise their own young. Instead, they lay their eggs in other species’ nests, and let those nest-making birds (often significantly smaller than the cowbirds) raise their young. So that is a negative mark on both their records.
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