SPIZAETUS. 225 



A rare species found only in forest. A male from Lnbang measures: 

 Length, 610; wing, 390; tail, 250; culmen from base, 38; tarsus, 97. 



184. SPIZAETUS LIMN/EETUS (Horsfield). 



CHANGEABLE HAWK EAGLE. 



Falco limnwetus Horsfield, Trans. Linn. Soc. (1821), 13, pt. 1, 138. 

 Sjyizaettts limnaetus Sharpe, Cat. Birds Brit. Mus. (1874), 1, 272. 

 Spizaetus limnaetus Sharpe, Hand-List (1899), 1, 264; Gates, Cat. Birds' 

 Eggs (1902), 2, 274; McGregor and Worcester, Hand-List (1906), 42. 



Calamianes [Bourns & Worcester) ; Lubang [McGi'egor) ; Mindanao (Platen) ; 

 Mindoro [Everett); Palawan [Whitehead, Platen). Burmese provinces, Malay 

 Peninsula, northeastern Bengal, Greater Sunda Islands, Assam, and the Hima- 

 layas. 



"Adult. — Above and below deep chocolate-brown, inclining to blackish 

 on the head and back, the quills and tail blackish, the shafts of the latter 

 brownish, the inner webs of the quills clear ashy ; tail-feathers below ashy 

 white, brownish toward the tips, the penultimate ones with remains of 

 irregular cross-markings. Cere yellowish; feet pale yellow; iris bright 

 yellow. Length, 635 ; culmen, 43 ; wing, 406 ; tail, 279 ; tarsus, 104. 



"Young {type of species). — Above clear brown, with faint terminal 

 margins of fulvous-brown, the buff-colored bases showing very con- 

 spicuously on all the upper parts, but especially distinct on the wing- 

 coverts, which are also broadly margined with huffy white; quills deep 

 brown, the secondaries lighter and more purplish brown, broadly tipped 

 with buffy white, and indistinctly barred with darker brown, plainer on 

 the inner web, especially underneath, where it is ashy white on the pri- 

 maries and grayish on the secondaries ; lower back and nimp pale brown, 

 the upper tail-coverts brownish buff; tail bro\vn, tipped with buffy white 

 and crossed with six equidistant bands of darker brown; head and neck 

 whitish buff, the sides of the latter washed with sand}- nifous, and mottled 

 with dark brown in the centers of the feathers; under surface of body 

 buffy white, washed with pale fawn-color on the sides of the body and 

 thighs, with a few indistinct spots of the same on the chest ; under wing- 

 coverts white, spotted with dark brown, the spots larger on the greater 

 series. Iris brownish. Length, (ilO: wing, 394; tail (not fully grown), 

 241; tarsus, 94. 



"Another young bird, collected by ]\Ir. Wallace, is rather larger in 

 general bulk than the foregoing example, though having the wing of the 

 same length. It is purer white below, with a sliade of dark brown on 

 the lower flanks, and a few distinct oval spots of brown on the breast. 

 The center tail-feather has seven bands of dark brown. 



"Nestling. — Covered with snow-white down, the crown of the head 

 inclining to fawn-color, the sprouting feathers blackish brown, the greater 

 77719 15 



