FALCONID.E. 20tt 



Family Fi\LCONlD^. 



Subfaini ly P o L Y B o R I N iE. 



Genus POLYBORUS. 

 Yieillot, Analyse, pp. 22, 70 (1816). 



Polyborus tharus. 



Falco tharus, Molina, Saggio 8t. Nat. Chil. p. 204 (1782). 

 Poll/horns tharus (MoL), Sharpe, Cat. B. Brit. Mus. i. p. 31 (1874). 



The Brazilian Caracara. 



Hah. South America generally. 



931. Sternum, with right coracoiJ and scapula. B'rom liaha- 



hoyo, Ecuador. S. S. 1011. Purchaml. 



Genus IBYCTER. 

 Vieillot, Analyse, pp. 22, 70 (1816). 



Ibycter australis. 



Faho australis, Gmelin, Syst. Nat. i. p. 2.39 (1788). 



Ibycter australis (Gm.), Sharpe, Cat. B.Brit, Mus. i. p. 38 (1874). 



The Falkland Islands Caracara. 



Ilab. Falkland Islands, and the extreme south of South 

 America. 



932. Sternum of male, with shoulder-girdle. S. S. 2161. 



From the Zoological Society. 



Sulifamily A cc IP I T lu N M. 



Genus CIRCUS*. 

 Laccpede, Mem. de I'lnst. Paris, iii. p. ^iOG (1801). 



Circus cyaneus. 



Falco ci/aneus, Linnaeus, Syst. Nat. i. p. 126 (1766). 



Circus cyaneus (L.), Sharpe, Cat. B. Brit. Mus. i. p. 52 (1874). 



The Hen-Harrier. 



* Cf. Shufeldt, R. W., " Osteology of Circus hudsonius,''' Jourii. Coinp. 

 Med. 1889, art. x. ; also Lydekker, Cat. Fossil B. p. 20 (ls!)l). 

 PART HI. P 



