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EGGS: lie on beds of chips within the nest and are ovate, pure white, and only moderately glossy (Gabrielson and Lincoln 1959). Source: Encyclopedia of Life

A large, chunky, seabird with a large head and bill and a short thick neck; upperparts are blackish brown, with paler sides, neck, and throat; belly white, grading into dark breast; adults in breeding plumage (acquired in winter) have two prominent white plume streaks on each side of the head (indistinct in basic plumage) and a yellow, upward-directed horn at the base of the orange or yellowish ...

This is a small, ground-dwelling owl with long legs, white chin stripe, round head, and stubby tail; adults are boldly spotted and barred with brown and white; juveniles are buffy below; average length 24 cm (NGS 1983, Peterson 1990). Source: Encyclopedia of Life