Redheads are medium-sized diving ducks with a smoothly rounded head and a moderately large bill.
Relative Size
Slightly larger than a Ring-necked Duck; slightly smaller than a Canvasback.


Measurements
- Both Sexes
- Length: 16.5-21.3 in (42-54 cm)
- Weight: 22.2-52.9 oz (630-1500 g)
- Wingspan: 29.5-31.1 in (75-79 cm)