Sex differences in the behaviour and measurements of common snipes Gallinago gallinago breeding in Cambridgeshire, England

Abstract

The birds were either trapped on the nest during incubation or caught in elastic powered nets when they alighted on prominent perches. They were marked individually with plumage dye or radio-tags. Perched-trapped birds were subsequently seen perching and giving drumming and arched-wind displays and are assumed to have all be males. Only nest-trapped birds, which are presumed to be females, were subsequently found incubating. -from Author