How big are Peregrine Falcons?

Peregrine falcons are raptors (birds of prey) and are about the size of a crow. They have long pointed wings with a wingspan of 36 – 44 inches.  Adult birds have slate-grey backs and barred breasts. Immature birds are more brown in color and have pronounced streaking in the breast. A notable feature in both males and females is their moustache.  Females are larger in size than males, typical for most birds of prey.