IBYCTER. — MILYAGO. 217 



fruits, which proved to be a species of Malpighia. Schombiirgk 

 dissected many others, and always found the remains of fruits in 

 their stomachs. He was of opinion, however, that it varied its diet 

 with insects and reptiles. The " Warraus " call this bird Yacha 

 talta and the " Macusis " Calau-Calau. 



Mr. J. J. Quelch (Timehri (2) iv. p. 102) observed this species 

 on the Great Falls, Demerara Iliver, and writes.: — '' The so-called 

 Bush Carrion Crows or Bultata (Ihi/cter americanus), which were 

 constantly to be heard hoarsely and discordantly^ cawing in the 

 high tree tops." He also states (t. c. p. 331) that he met with 

 the species on the Upper Berbice Biver. He likewise remarked 

 {op. cit. vi, p. 120) that its food consisted almost entirely of seeds, 

 fruit, and young leaves. 



Genus MILVAGO Sjmx. 



Milvar/o Spix, Aves Brasil. i. p. 12, 1S2-1. Type M. chimachiina 

 (VieilL). 



Tliis genus is distinguished from the preceding by the 

 feathered throat. 



136. Milvago cliimacliima. 

 Yellow-headed Caracara. 



Polyhorus clnmacliima Yieill. N. Diet. d'Hist. Nat. v. p. 259, ISIG 



(Paraguay). 

 J^Lilvafjo chimacldma Cab. in Schomb. Beis. Guian. iii. p. 741, ISIS; 



Salvin, Ibis, 1SS6, p. 7S (Meruuie Mts.) ; Quelch, Thnehvi (2) vi. 



p. 125, 1S92 ; Brabourne & Chubb, B. S. Amer. i. p. G8, no. 5SU, 1912. 

 Ihycter chimachima Sharpe, Cat. B. Brit. Mus. i. p. 39, 1S74. 



" White-headed Caracaras " {Quelcli). 



Adult male. Head and entire under surface, ijicluding the 

 axillaries and under wing-coverts, creamy-white ; a line behind 

 the eye, back, iind wings dark Itrown ; the primaries barred nud 

 mottled with butt'y-whitu on the basal portion ; upper tail-coverts 

 bufly-white, the short central ones barred with brown ; tail ilark 

 brown or blackish, Inoailly barred on the basal poi'tiuii and cilged 

 with biiffy-white. 



Total length 300 mm., culmen 23, wing 2^0, tail 178, tarsus ;V1, 

 middle toe and claw 45. 



Adult female. Like tlu; adult nudo in plumage, but larger in 

 size. Wing 300 nnn. 



The mule described was collected on the Anarica Biver. 



