T 12 
alt.en’s naturalist’s library. 
of Australia and tlie Moluccas is a smaller bird, but cannot be 
considered a distinct species, while the .American Osprey I 
consider to be absolutely identical with the ordinary bird of 
the Old World. 
There is but one genus in the Sub-order, namely the genus 
Pandion, Savigny, Descr. de I’Egypte, p. 272 (1809). 
'I'ype, P. halia'etns (L.), 
the characters of which have been alluded to above. 
I. THE OSPREY. PANDION HAHAETUS. 
Falco haliaeius, Linn. Syst. Nat. i. p. 129 (1766). 
Pandion haluutus, Macg. Brit. B. iii. p. 239(1840); Newton, 
ed. Yarn Brit. B. i. p. 30 (1871); Sharpe, Cat. B. Brit. 
Mus. i. p. 449 (1874); Dresser, B. Eur. vi. p. 139, pi. 
387 (1876); Seeb. Br. B. i, p. 55 (1883) ; B. O. U. List 
Br. B. p. T05 (1883) ; Saunders, Man. Br. B. p. 347 (1889). 
Adult Male. — General colour above dark brown, the feathers 
with indistinct edges of paler brown ; quills blackish, the 
primaries uniform whity-brown below, the secondaries whitish 
on the inner web, and indistinctly barred with ashy-brown ; 
tail almost uniform brown, the inner webs whitish with obso- 
lete bars of ashy-brown ; head brown, mottled with white 
bases to the feathers; from behind the eye a broad white 
streak, extending down the sides of the neck ; the ear-coverts 
blackish-brown ; sides of neck like the back ; sides of face 
and under surface of body white, the chin and fore-part of 
cheeks slightly streaked with dark-brown ; breast with brown 
centres to the feathers; some of the flank-feathers and the 
axillaries marked with rufous-brown, like the breast ; bill black, 
the cere blue ; feet blue ; iris yellow. Total length, 24 inches ; 
culmen, 175; wing, i9’8; tail, 9'5 ; tarsus, a'q. 
Adult Female. — Resembles the male in colour. Total length, 
21 inches; wing, ip'o. 
Young. — Chocolate-brown, the feathers plainly edged with 
buffy-white, more broadly on the secondaries and upper tail- 
coverts; crown black, with white edges to the feathers, im- 
parting a streaked appearance ; nape white ; tail-feathers brown. 
