Scientific Name Falco peregrinus anatum
Description Crow-sized bird of prey with long, sickle-shaped wings and a long, tapered tail
Plumage Adults are bluish-grey on top, with a dark hood extending into a thick vertical stripe on each cheek; underparts are pale, with blackish or dark brown spots and barring
Juveniles vary from slate grey to brown on top, and have buffy underparts with dark vertical streaks
Length Females are 45–58 cm (18–23 in.) from tip of beak to tip of tail
Males are always smaller, about 36–49 cm (14–19 in.)
Wingspan 80–120 cm (31–47 in.)
Weight Females average 910–960 g (2–2.1 lbs.)
Males are about 500–570 g (1.1–1.3 lbs.)
Speed 65-90 km/h (40-55 mph) in normal flight
330 km/h (205 mph) or more in a stoop, or attack dive
Call A harsh, resounding “kak-kak-kak-kak”, more wheezy and high-pitched in males, more grating and coarse in females