 Most accipitrids exhibit sexual dimorphism in size, although, unusually for birds, it is the females that are larger than the males.This sexual difference in size is most pronounced in active species that hunt birds, such as the "Accipiter" hawks, in which the size difference averages 25–50%.In a majority of species, such as generalist hunters and rodent-, reptile-, fish-, and insect-hunting specialists, the dimorphism is less, usually between a 5% to 30% size difference.