252 FALCONID^E. 



very sparingly spotted all over with pale rufous. The two examples 

 measure respectively: 1-47 by 1/17; 1/41 by 1-16. 



2. Mt. Kina Balu, N. Borneo, March Crowley Bequest. 

 (J. Whitehead). 



Sub-Family BUTEONIN^l. 

 Genus GERANOAETUS, Kaup. 



Geranoaetus melanoleucus ( VieilL). 

 (Plate XI. fig. 1.) 



Buteo melanoleucus, Sharpe, Cat. Birds B. M. i. p. 168 (1874) ; Nehrk. 

 Kat. Eiersamml. p. 5 (1899). 



Geranoaetus melanoleucus, Gibson, Ibis, 1879, p. 409 ; Dalffleish, Proc. 

 R. Phys. Soc. Edinb. vi. p. 239, pi. vii. fig. 3 (1880-81) ; Scl. 8f 

 Huds. Argent. Ow.ii. p. 64 (1889) ; James, New List Chilian Birds, 

 p. 7 (1892) ; Sharpe, Hand-l. i. p. 255 (1899) ; von Ihering, Rev. 

 Mus. Paulista, iv. p. 270 (1900). 



The eggs of the Giant Buzzard are very regular ovals, slightly 

 rough in texture, and without gloss. Some specimens are plain white 

 or bluish white. The majority, however, are marked in a greater or 

 less degree \\ith grey, purplish brown, or yellowish brown. The 

 markings on some eggs are exceedingly sparse and faint, and on others 

 bold and of a rich colour. Eight specimens measure from 2-3 to 2*8 

 in length, and from T77 to 2 in breadth. 



1. Chile. Old Collection. 



1. Central Chile. Berkeley James Coll. 



2. Central Chile. Berkeley James Coll. 

 2. Central Chile, Oct. Berkeley James Coll. 

 2. Chile. Crowley Bequest. 



Genus BUTEO, Cuvier. 



Buteo poliosonms (Q. $ G.). 



(Plate XI. fig. 4.) 



Buteo varius, Gould, P. Z. S. 1859, p. 94. 

 Buteo poliosoma, Abbott, Ibis, 1861, p. 151. 



Buteo poliosomus, Sharpe, Cat. Birds B. M. i. p. 171 (1874) ; id. Hand-l. 

 i. p. 255 (1899). 



The eggs of the Grey-bodied Buzzard in the Collection are almost 

 elliptical in shape. They are dull white, marked with spots and 

 blotches of umber-brown, which are more frequent at the larger 

 end than elsewhere, and form a broad irregular zone at that part. 

 They measure respectively : 2-46 by 1-85 ; 2-55 by 1'83. 



2. Falkland Islands (C. C. Abbott). Gould Coll. 



Buteo erythronotus (-King). 



Buteo erythronotus, Gould, P. Z. S. 1859, p. 93 ; Scl. Ibis, 1860, p. 25, 

 pi. i. fig. 3 ; Abbott, Ibis, 1861, p. 151 ; Sharpe, Cat. Birds B. M. i. 



