Clapper Rail (Rallus longirostris) Science Article 1
Little is known of the extent of movement and winter ranges of Clapper Rails (Rallus longirostris) in the United States despite years of study by ornithologists and game biologists (Stewart 1951, 1954;Mangold 1977). For example, only recently was it learned that the endangered southwestern population, R. l. yumanensisle, aves its breeding grounds in…..
ROBERT L . CRAWFORD eat al., The Auk, Vol.100(1), pp. 198-200