74 
Mr. Charles Chubb on the 
Hypomorphnus urubitinga Berlepsch, J. £. O. 1887, p. 28 
(Lam bare). 
Urubitinga urubitinga Sharpe, Hand-list B. i. p. 258 (1899) ; 
Ihering, Revista Mus. Paulista, vi. p. 338. 
a. $ iram. Sapucay, March 8, 1904. 
Bill of a dark horn-colour; tarsi and feet yellow ; iris 
golden brown. 
This specimen is in full plumage, but retains a little of the 
immature rufous colour on the breast and sides of the neck. 
29. ICTINIA FLUMBEA. 
Falco plumbeus Gm. Syst. Nat. i. p. 283(1788 : Cayenne). 
Alcon azulejo Azara, Apunt. i. p. 167. no. xxxvii. (1802). 
Ictinia ptumbea Yieill. N. Diet. d’Hist. Nat. xvi. p. 76 
(1817 : Paraguay) ; Sharpe, Cat. B. Brit. Mus. i. p. 364 
(1874) ; Berlepsch, J. f. O. 1887, p. 123 (Paraguay) ; 
Ihering, Revista Mus. Paulista, vi. p. 339. 
a. $ ad. Ybytimi, January 31, 1904. 
Bill black ; tarsi and feet orange-chrome; iris crimson. 
30. Falco albigularis. 
Falco albogularis Daud. Traite, ii. p. 131 (1800 : Cayenne); 
Sharpe, Cat. B. Brit. Mus. i. p. 401 (1874) ; Kerr, Ibis, 
1892, p. 142 (Lower Pilcomayo) ; Ihering, Revista Mus. 
Paulista, vi. p. 339. 
Hypotriorchis melanogyne Bertoni, Aves Nuev. Paraguay, 
p. 168 (1901 : Alto Parana), cf. Ihering, 1. c. 
a. $ ad. Sapucay, March 26, 1904. 
Bill of a slate-colour ; cere and circle round the eye 
yellow ; tarsi and feet pale orange. 
31. Cerchneis australis. 
Falco sparverius var. australis Ridgway, Hist. N. Amer. B. 
iii. p. 166 (1874: Parana). 
Cerchneis sparveria cinnamomina Berlepsch, J. f. O. 1887, 
p. 123 (Paraguay). 
Tinnunculus sparverius cinnamominus Ihering, Revista Mus. 
Paulista, vi. p. 339. 
