58 FALCONID^l. 



while if its quarry should double it loses no ground, for it turns some- 

 thing in the manner of a Tumbler Pigeon, going rapidly head over 

 heels in the most eccentric and amusing fashion." 



Probably this Harrier has a partial migration, as a great many are 

 always seen travelling across the pampas in the autumn and spring ; 

 many individuals, however, remain all winter. 



The nest is made on the ground among long grass, or in reed-beds in 

 marshy places, and the eggs are white blotched with dark red. 



293. CIRCUS MACROPTERUS, Vieill. 

 (LONG-WINGED HARRIER.) 



Circus macropterus, Scl. et Salv. Nomencl. p. 118; iid. P. Z. S. 1868, p. 143 

 (Buenos Ayres) ; Daring, Krp. al Rio Negro, p. 50 (Rio Colorado). 

 Buteo macropterus, cTOrb. Voy., Ois. p. 112 (Buenos Ayres). Circus 

 maculosus, Sharpe, Cat, B. i. p. 62. Circus megaspilus, Gould, Zool. Voy. 

 Beagle, iii. p. 29 (Uruguay). 



Description. Above black ; frontal band, superciliaries, and upper tail-coverts 

 white ; edge of facial ruff spotted with white ; wing- and tail-feathers grey, 

 with black cross bands : beneath white, chest and throat black, with some 

 white streaks ; under wing-coverts white, with narrow blackish cross bands : 

 whole length 2OO inches, wing 17*0, tail 1OO. Female similar, but larger. 



Hab. South America. 



This Harrier is also found in the Republic, but is not so common as 

 the former species. 



294. ASTURINA PUCHERANI, Verr. 

 (PUCHERAN'S HAWK.) 



Asturina pucherani, Scl. et Salv. Ex. Orn. pi. 89, p. 177; iid. Nomencl. 

 p. 118; iid. P. Z. S. 1869, p. 634 (Buenos Ayres) ; Durnford, Ibis, 1877, 

 p. J 87 (Buenos Ayres) ; Barrows, Auk, 1884, p. 30 (Entrerios) ; With- 

 ington, Ibis, 1888, p. 469 (Lomas de Zamora) ; Sharpe, Cat. B. i. p. 205. 



Description. Above dark brown ; upper tail-coverts fulvous barred with 

 brown ; wings deep chestnut, barred and broadly tipped with black ; tail ful- 

 vous, with four blackish cross bands : beneatb, abdomen pale ocbraceous, barred 

 across with rufous; throat blackish, with slight white stripes ; breast ochra- 

 ceous, with narrow black shaft-stripes ; thighs ochraceous, narrowly barred 

 with orange-rufous ; bill black ; feet dark yellow : whole length 18'0 inches, 

 \ving 11-0, tail 8-2. Female similar, but rather larger. 



Hab. South Brazil, Paraguay, and Argentina. 



This brown-plumaged, short-winged, and exceedingly vociferous 

 Hawk is common in the woods along the shores of the Plata and its 



