2013 Animal Breeders Breeding 
10,000 Birds
JULY 23, 2014
In the mid-1970s, a local breeder was burglarized and a few of his birds escaped, after which the breeder released his remaining stock of about 50 birds 1. This is an animated map made from Christmas Bird Count data of Eurasian Collared-Dove sightings from 1987 through 1997 2. In warm climates they can breed year round.
10,000 Birds
FEBRUARY 18, 2014
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. There are variations on that theme, of course. Even the non-passerines often follow this pattern.
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