Yellow-headed Blackbirds are fairly large blackbirds, with a stout body, a large head, and a long, conical bill.
Relative Size
Smaller than a Common Grackle; larger than a Red-winged Blackbird.


Measurements
- Both Sexes
- Length: 8.3-10.2 in (21-26 cm)
- Weight: 1.6-3.5 oz (44-100 g)
- Wingspan: 16.5-17.3 in (42-44 cm)