Circus pygargus

A: Blouvleivalk


An uncommon summer visitor. Male is easily separated from similar Pallid by having brown streaks on the belly, and underwing coverts, along with having a black line on the upperwing. Females are much trickier to separate! Lack of a prominent dark ‘crescent’ on the face, relative uniformity in the streaking and lack of a white collar are the general basis for separating the females.