- Medium-sized waterbird; large grebe.
- Bill is large, straight, and sharp.
- Breeding adult has a rufous neck, pale gray or white cheeks, and a black cap.
- Nonbreeding adult has gray neck and cheeks.
Immature DescriptionJuvenile has bold dark stripes on sides of head. Immature similar to nonbreeding adult, but even grayer; some rufous or brown tones usually show on foreneck.
- Both Sexes
- Length: 16.9-22.1 in (43-56 cm)
- Weight: 28.2-56.4 oz (800-1600 g)
- Wingspan: 24.0-34.6 in (61-88 cm)