35 mm slide; color. Scientific Classification: Kingdom: Animalia; Phylum: Chordata; Class: Aves; Order: Passeriformes; Family: Corvidae; Genus: Nucifraga; Genus species: Nucifraga columbiana. Animal characteristics: Head-Body Length: 28 cm; Identification: Clark's nutcracker is pale gray with white around its bill base and undertail coverts. The wings are black with a white patch on the secondaries. The tail of the nutcracker is black with white outer feathers; Habitat: High mountains, woodlands; Diet: Omnivore: seeds, nuts, berries, insects, snails, eggs, young birds, carrion; Reproduction: Breeding takes place in late winter. Nests are built in coniferous trees, into which the female will lay 2-4 eggs. Both parents incubate the eggs for 16-18 days, as well as feed the chicks after hatching. The chicks leave the nest when they are 18-21 days old; Behavior: Clark's nutcrackers are well known for their ability to store and then find pine seeds to eat in the winter; Status: No special status; Interesting Facts: A single bird may store more than 30,000 seeds in one season. The Lewis and Clark expedition of 1805 discovered this bird.