Breeding Eggs Ferrets Killing 
10,000 Birds
AUGUST 20, 2013
Like many birds, Grebes are mainly preyed on by other birds, but also, because Grebes liv in and on and near (mostly) fresh water, they are also preyed on by the smaller carnivores such as ferrets. Some of the lakes they breed on have been stocked with salmon and trout.
10,000 Birds
OCTOBER 16, 2012
In short, the answer is that in the United States there are 20 billion birds at the end of the breeding and fledging season, which gets winnowed down to 10 billion by the following early spring. Hardly any Sandhill Cranes are killed by domestic (including ferrel domestic) cats. Raptors either. But this is problematic.
10,000 Birds
JULY 11, 2012
Each year tens of thousands of these gulls go to the islands and each pair will lay three eggs. Most of these clutches of eggs will hatch to produce three fluffy and adorable chicks. By way of an example take the Western Gulls that I studied on the Farallon Islands in California. Western Gull chick.
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