Breeding Eggs Raised Zoos 
10,000 Birds
FEBRUARY 23, 2024
Sadly, they no longer breed in Algeria, while in Turkey no free-flying birds remain. (In Storks, Ibises and Spoonbills of the World states that “disturbance by local people, tourists, and egg and zoo collectors has similarly reduced the colonies, and more protection is vital”. In 1890 an estimated 3,000 pairs nested in Birecik.)
Critter News
DECEMBER 12, 2009
Another animal dies at the Calgary Zoo and more questions are being raised about their practices. I don't track zoos, but this seems like an unusually high number of casualties. In April 2009, unseasonably cold weather froze two whopping crane eggs. They were a part of the zoo’s breeding program for the rare birds.
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10,000 Birds
JULY 4, 2023
What the Owl Knows is organized into nine chapters: introduction, adaptation (including vision and flight), research and researchers, vocalization, courtship and breeding, roosting and migration, cognition, and two chapters on owls and humans–captive owls (not zoos, educational owls) and owls in our cultural history.
10,000 Birds
SEPTEMBER 9, 2014
We have photographs and newspaper obituaries of Martha, the last living Passenger Pigeon, who died after a lifetime in captivity, mostly in the Cincinnati Zoo. How many eggs did a pigeon lay? Or the destruction of the forests, food source and breeding grounds. We have a lot of source material. How many times did it nest?
10,000 Birds
OCTOBER 17, 2022
In terms of breeding behavior, starlings are a diversified group – some use helpers, others do not. Superb Starlings avoid this when using helpers, much like rich people presumably reducing the stress of raising kids by hiring a couple of nannies. She also laid eggs in Melba Finch nests. Red-billed Firefinch. young in 1.5
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