Ruffed grouse populations are surveyed by counting the number of male ruffed grouse heard drumming on established routes throughout the state’s forested regions. Drumming counts are an indicator ...

From singing American robins to the rat-a-tats of various objects by woodpeckers, to trumpeting trumpeter swans and much more ...

The ruffed grouse has been Pennsylvania's state ... During mating season, which is March and April, male grouse attract females by drumming. With their tail fanned, the male stands on a large ...

Greater sage grouse are sexually dimorphic, meaning the male and female look different. Females are small and football-shaped, with a black belly and white-speckled feathers, while males resemble ...