2009 2010 Investigation Raised 
10,000 Birds
JANUARY 22, 2015
As our Gypsy comes to a halt, one Oriental Honey Buzzard is investigating the new arrivals. The closer one raises her head, than lies back. Telia watches him in half-amusement, then raises and gives a low, bull-like roar, provoking the lapwings to an excited screech, makes a few steps and lies down. The other two are motionless.
10,000 Birds
APRIL 21, 2011
The templates can be discovered by raising birds in the absence of adult song, and they often sound very little like the normal final product. The bottom two are the songs of individuals raised in isolation, representing only their “built-in&# template unaffected by the experience of hearing normal adults. London: John Murray.
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