10,000 Birds

MARCH 7, 2014

The two have built up a devoted following through years of triumph – like last season, when they fledged three young – and tragedy – like the season before, when their eggs didn’t even hatch. Ozzie and Harriet with the 2013 brood.

Montana 241

Montana Horses Eggs Morals 241

10,000 Birds

FEBRUARY 18, 2014

In the former, a female lays her fertilized egg in the nest of another species, in the hopes that her offspring will be raised by the unwitting hosts. In the latter, three or more adult individuals contribute to the raising of offspring. It turns out that the two strategies may be related. They looked at fairy-wrens and cuckoos.

Breeders 252

Breeders Breeding Science Raised 252

10,000 Birds

APRIL 24, 2012

This week at 10,000 Birds, it’s all about how birds get around to bumping uglies (I’m talking about cloacas here), who they do it with, and how this actually leads to raising chicks…the birds and the bees of birds, you might say. Believe it or not, this is what “fidelity” looks like.

Albatross 243

Albatross Lifestyle Birds Raised 243

10,000 Birds

JANUARY 19, 2012

Both Elk and songbirds have the same basic method of inseminating eggs, which is one of the steps in reproduction (but not by any means the first!), Songbirds grow the offspring internally for only a very short while, and then pop out an egg, which is then cared for over a significant period of time until it hatches.

Mammals 201

Mammals Eggs Abandon Abandoning 201

10,000 Birds

MARCH 25, 2020

Her narrator is Gabriel, 23, raised in Northern California by an American father and a Uruguayan mother. And the nandu, a South American rhea, has an intriguing chick-survival strategy: a week before hatching, the male (who does the incubating) pushes one egg out of the nest. What an ugly sentence that is.

Uruguay 181

Uruguay 2001 Bald Eagle Science 181