Perisoreus is a genus of birds commonly known as jays, specifically the gray jay and the Siberian jay. These birds are found in the northern forests of North America and Eurasia. They are known for their intelligence and adaptability, often foraging for food and caching it for later use. Gray jays, also called Canada jays, are particularly notable for their friendly behavior towards humans and their ability to thrive in cold environments. They have a distinctive gray plumage and are often seen in pairs or small family groups. Their diet consists of insects, berries, and food scraps from campers.