This definitive monograph focuses on the population, biology, and behavioral ecology of feral pigeons, a familiar but seldom studied bird. Includes a thorough listing of primary references of US and European scholarly literature.Some, however, may lose their parents before normal fledging, for a number of reasons. Such orphans usually cannot feed themselves, and they spend much time running around, sometimes with other orphans ... This can be a successful strategy, and in conditions of high-density nesting, many adults do not object to feeding any youngster that begs (Pikula et al. ... If parents are present when fledglings leave the nest, the young birds tend to stay nearby (Bruns 1959), being fed byanbsp;...
|Author||:||Richard F. Johnston, Marián Janiga|
|Publisher||:||Oxford University Press on Demand - 1995|