By maturity, most European Kestrels are between 13 and 15 inches (33 to 39 centimeters) in length. Females are often slightly larger than males. The wingspan usually reaches about 26 inches (70 centimeters). Both sexes have brownish plumage and relatively long, pointed wings. Often, males' feathers are more rufous in color than those of females, and some birds show deep russet or chestnut shades. The heads and tails of males are bluish gray. A black tip accents the long tail. Black stripes also decorate the beautiful faces of both sexes of European Kestrels.
