The Four Keys to ID
- Size & Shape
A large, slender waterbird with a very long neck, a large head that may show a peak, and a long, slender, pointed bill.
Relative Size
Larger than a Mallard, smaller than a Common Loon.
crow-sizedMeasurements
- Both Sexes
- Length: 21.6-29.5 in (55-75 cm)
- Weight: 40.1-64.4 oz (1138-1826 g)
- Wingspan: 22.8-25.2 in (58-64 cm)
- Color Pattern
- Behavior
- Habitat
Regional Differences
A mostly migratory northern subspecies, occidentalis, breeds in the U.S. and Canada. It is larger, with longer wings, than the southern subspecies, ephemeralis, that breeds only on the Mexican Plateau.