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Questionable Practices at the Calgary Zoo

Critter News

Another animal dies at the Calgary Zoo and more questions are being raised about their practices. 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. I don't track zoos, but this seems like an unusually high number of casualties.

Zoos 100
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Birding the Kruger Park (2): Bateleur area

10,000 Birds

The active colonies of wasps are efficient protection against primates and large avian predators. Studies on improving ostrich egg hatchability. Also, I learned that in the US , ostrich eggs are priced at $40-$75. Each fresh egg weighs 4 pounds and is the equivalent of 24 chicken eggs. . Ostrich industry in Egypt.

Ostriches 147
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A Strategic Arms Race Among Birds

10,000 Birds

The vast majority of the 10,000+ living species of birds are passerines, and the vast majority of those have a similar system of breeding: Mom and dad bird make a nest and share parental responsibilities roughly equally, if not identically. In the latter, three or more adult individuals contribute to the raising of offspring.

Breeders 199