806 FALCONID^. 



Hah. The whole of North America, as far south as Florida, Cali- 

 fornia, and Mexico. 



3. Haliaetus pelagicus. 



Aquila pelagica, Pall. Zoogr. Rosso- As. i. p. 343, pi. 18 (1811); Kittl. 



Kupf. Voff. p. 3, pi. 2. fig. 1 (1832) ; Midd. Sibir. Reiae, Zool. p. 125 



(1851). 

 Falco leucopterus, Te7nm. PI. Col. i. pi. 489 (1824). 

 Falco imperator, Kittl. Kupf. Voij. p. 3 (1832). 

 Thalassaetus pelagicus, Kaup, Mus. Senck. iii. p. 261 (1845). 

 Haliaetus pelagicus, Gray, Ge7i. B. iii. App. p. 1 (1849) ; Temm. 8f 



Schl. F. J. Aves, p. 11, pi. 4 (1850) ; Rp. Consp. i. p. 15 (1850) ; 



Cass. R. Calif, pp. 31, 110, pi. 6 (1855); Strickl. Om. Syti. p. 51 



(1855) ; Scht'enk, Reis. A7nnrl. Zool. p. 222 (1859) ; Cass, in Raird, 



R. N. A. p. 42 (1860) ; Schl. Mus. P.-R. Aquilse, p. 14 (1862) ; 



Elliot, R. N. A771. part 6 (1867) ; HoiJiey. J. f. O. 1868, p. 248 ; 



Gray, Hatid-l. i. p. 17 (1869) ; Srvitih. P. Z. S. 1871, p. 339 ; Coues, 



Key N. A. Rirds, p. 220 (1872). 



Adnlt. General colour brown, the feathers of the back imper- 

 ceptibly whitish at the tips, with ashy streaks on the whole head, 

 neck, and under surface ; forehead and a few feathers near the gape 

 white ; quills blackish, the secondaries, as well as the greater wing- 

 coverts, brown like the back, with paler brown edges ; the fol- 

 lowing parts white — lesser and median wing-coverts, forming a 

 large patch, rump, upper tail-coverts, and tail, the entire thighs and 

 under tail-coverts ; under wing-coverts brown, those along the carpal 

 joint white, the long vent-feathers brown, like the rest of the under 

 surface ; cere, orbits, and bill bright yellow ; feet deep yellow, with 

 horn-brown nails. Total length 41 inches, culmen 4:5, wing 24-4, 

 tail 15*1, tarsus 4*9, middle toe 3-1. (Mus. Litgd.) 



Yoimcf. Similar to the adult, but not so rich brown, the streaks 

 on the head and underparts more distinct down the centre of the 

 feathers ; scapulars white at the base, becoming mottled with brown 

 towards the middle of the feathers ; the small and median wing- 

 coverts brown like the back, the greater coverts and inner secondaries 

 white at the base and along the inner web, as also the feathers of 

 the lower back, rump, and upper tail-coverts, the latter especially 

 being brown towards the tips ; tail white, with brown mottling 

 towards the tip, and especially on the exterior web of the outer 

 feather ; thighs brown, very slightly mottled with white, as also 

 the vent-feathers, which show rather more white. Total length 



