Characters same as those given for the Suborder.
Genera.
- a1. Smaller; front of tarsus covered with small imbricated scales. Pandion (p. [245])
- a2. Larger; part of tarsus covered with large transverse plates. Polioaëtus (p. [247])
Genus PANDION Savigny, 1809.
Bill slightly compressed; width of upper mandible at nostril more than its depth; primaries abruptly and deeply cut on inner web and exceeding secondaries by more than length of tarsus; back of tarsus covered with small scales like those in front.
Species.
- a1. Much larger; wing, about 500 mm. haliætus (p. [245])
- a2. Much smaller; wing, 460 mm. or less. leucocephalus (p. [246])
203. PANDION HALIÆTUS (Linnæus).
EUROPEAN OSPREY.
- Falco haliætus Linnæus, Syst. Nat. ed. 10 (1758), 1, 91.
- Pandion haliaëtus Sharpe, Cat. Birds Brit. Mus. (1874), 1, 449; Oates, Cat. Birds’ Eggs (1902), 2, 315; McGregor and Worcester, Hand-List (1906), 45.