Birds of Paraguay. 71 



and more numerous ; the rufous colour on the chin, throat, 

 fore-neck, and sides of neck is darker and duller ; the dark 

 bars on the under surface are blacker and much broader; 

 the white bar on the sides of the upper neck is broad and 

 avcII pronounced. Total length 146 inches ; culraen, from 

 base of forehead, 0*75; wing 6'8 ; tail 68; tarsus 255; 

 middle toe and claw 1'45. 



24. Parabuteo unicinctus. 



Gavilan mixto obscuro y canela Azara, Apunt. i. p. 94. 

 no. xix. (1802). 



Falco unicinctus Temm. PI. Col. i. pi. 313 (1824 : Rio 

 Grande, Brazil). 



Bvtco unicinctus Hartl. Ind. Azara, p. 2. no. 19(1847). 



Antenor unicinctus Berlepsch, J. f. O. 1887, p. 27 

 (Lam bare). 



Parabuteo unicinctus Sbarpe, Hand-list B. i. p. 247 

 (1899) ; Ihering, llcvista Mus. Paulista, vi. p. 337. 



a. ? imm. Sapucay, May 28, 1903. Bill of a slate-colour ; 

 cere yellowish green ; tarsi arid feet yellow ; iris brown. 



Mr. Foster says that this specimen was shot on the edge 

 of the forest. 



25. ACCIPITER PILEATUS. 



Esparvero azu/ejo Azara, Apunt. i. p. 118.no. xxvi. (1802). 



Falco pileaius Temm. PI. Col. i. pi. 205 (1823: Brazil). 



Accipiter pileatus Hartl. Ind. Azara, p. 2 (1847) ; Sharpe, 

 Cat. B. Brit. Mus. i. p. 153 (1874) ; Beriepsch, J. f. 0. 1887, 

 p. 122 (Paraguay) ; Ihering, Ilevista Mus. Paulista, vi. 



p. 337. 



a. ? ad. Sapucay, October 18, 1902. Iris orange-red. 



This specimen, which is in full plumage, has the back of a 

 dark slate-colour with black shaft-lines ; crown black ; upper 

 wing-coverts dark brown ; tail banded with brown and black ; 

 under surface of body of a pale slate-colour with black shaft- 

 streaks ; under tail-coverts whitish; thighs, under wing- 

 coverts, and axillaries rufous. 



I can find no difference between this example and others 

 from Brazil. 



