52509, (♀ ?). NAT. SIZE.
9128, ♀ ? ¼
Haliaëtus leucocephalus.
Hab. Entire continent of North America, north of Mexico.
Localities quoted: Upper Texas; breeds (Dresser, Ibis, 1865, 65). Western Arizona (Coues, P. A. N. S., 1866, 49).
LIST OF SPECIMENS EXAMINED.
National Museum, 17; Philadelphia Academy, 14; Boston Society, 3; Museum Comparative Zoölogy, 3; Coll. R. Ridgway, 2; Coll. J. C. Sharp, Jr., 1; W. S. Brewer, 1. Total, 41.
| Sex. | Wing. | Tail. | Culmen. | Tarsus. | Middle Toe. | Specimens. |
|---|---|---|---|---|---|---|
| ♂ Ad. | 20.00–23.00 | 11.00–13.00 | 1.85–2.00 | 2.65–3.40 | 2.35–2.65 | 10 |
| ♂ Juv. | 23.50–25.00 | 12.00–15.25 | 1.95–2.20 | 3.20–3.30 | 2.70–2.90 | 5 |
| ♀ Ad. | 23.50–25.00 | 12.50–13.50 | 1.90–2.20 | 3.40–3.60 | 2.55–2.80 | 7 |
| ♀ Juv. | 25.50–26.00 | 15.00–15.50 | 2.10–2.20 | 3.25–3.70 | 2.55–3.10 | 2 |