Red-tailed hawk
Because they are so common and easily trained, most hawks got for falconry in the United States are red-tails. Falconers may take only 'passage hawks' (which have left the nest, are on their own, but are less than a year old). This is so not to affect the breeding population. Adults, which may be breeding or rearing chicks, may not be taken for falconry purposes and it is illegal to do so.