114 How to Sex Cage Birds. 



Sharp-tailed Conure (Comirus acuticaudatus). 



Contrary to what one would expect, the beak of the sexed female 

 in the Museum series is distinctly narrower, both viewed from 

 above and in profile, than that of the male ; the terminal hook also 

 is longer. This species therefore would seem to have the normal 

 sexual characters reversed. 



Blue-crowned Conure (Comirus hcemorrhous). 



I found no sexed specimens ; but as this species is nearly related 

 to the preceding, it is not improbable that it possesses the same 

 abnormal sexual peculiarities. 



Golden Conure (Conurus guarouba). 



In the sexed examples the male has a longer and less curved 

 beak than the female ; its plumage, as regards the yellow colouring 

 of the body, is also brighter and more tinted with orange. 



Yellow Conure (Conurus solstitialis). 



The beak of the male is longer and rather broader than that of 

 the female : it is also a trifle deeper when viewed in profile. 



Yellow-headed Conure {Conurus jendaya). 



I found no sexed specimens of this species, but it is pretty certain 

 that the male will prove to have a longer and slightly broader beak 

 than the female 



Golden-headed Conure (Conurus auricapillus). 

 The male has a longer and broader beak than the female ; it is 

 also deeper when viewed in profile. 



Black-headed Conure (Conurus nanday). 



Although the beaks of the sexes are about equal in length, that 

 of the male is distinctly broader than that of the female, and deeper 

 when viewed in profile. 



Red-masked Conure (Conurus rubrolarvatus). 



No sexed specimens, but it is highly probable that the male has a 

 broader beak than the female. 



Wagler's Conure (Conurus wagleri). 

 As with the preceding, no specimens were sexed ; it is probable 

 that the male has the broader beak. 



Green Conure (Conurus leucophthahnus). 

 The beak of the male is narrower at the base, and has a more 

 slender terminal hook than that of the female. 



The Red-collared Conure (C. rubritorquis) is now considered to 

 lie a mere variety of the following : — 



