the dusky grouse is a grouse species native to the rocky mountains of north america. they were formerly considered conspecific with the sooty grouse; they were referred to as the ‘blue grouse’ as a single species. the dusky grouse thrives in habitats rich with conifers. during harsh winter months, they primarily feed off of fir needles; in summer months, their diet diversifies to include summer perennials, berries, and insects. dusky grouse chicks are insectivorous for the first few weeks of their life. males can easily be distinguished from females by their purple air sacs on the neck, used for breeding displays; during breeding season, they also display a bright wattle over the eye. females are a lighter mottled gray, and males are a darker grayish-brown.
Ruffed Grouse (Bonasa umbellus), male, displaying, family Phasianidae, order Galliformes, SK, Canada
photograph by Brenda Makin
Greater Sooty Owl (Tyto tenebricosa), family Tytonidae, order Strigiformes, Australia
Photographs by Ben Williams






















