Sentence examples for birds were bred from inspiring English sources
Pigeon racing, as a competitive sport, was developed in Belgium in the early nineteenth century, when messenger birds were bred to have greater endurance and speed.
These surviving birds were bred at the San Diego Zoo Safari Park and the Los Angeles Zoo.
Success came more quickly, and the first captive birds were bred in 2009 in the North Carolina Zoo.
All birds were bred and reared at Leiden University and had not been used in experiments before.
All female birds were bred in our laboratory; the males were bred in our laboratory or at other UK universities.
The birds were bred and raised at the Institut National de la Recherche Agronomique (INRA) UE1295 Pôle d'Expérimentation Avicole de Tours, F-37380 Nouzilly, France.
One particularly interesting aspect of this captive-breeding programme is that the birds are bred using artificial insemination -- and the viability of the sperm in each ejaculate is carefully assessed after collection since abnormal sperm present obvious fitness costs for the birds (and for the conservation programme!).
Turkeys, including some "organic" birds, are bred to have such large breasts that they often cannot stand upon reaching maturity.
"It's unfortunate, because these birds are bred and trained for only one thing and that is to fight and kill another rooster," said Animal Services Deputy Director Dan DeSousa.
In 1954, a mutant strain of featherless chicken was discovered, and the bird was bred at the University of California, Davis, he said.
