. How to sex cage birds (British and foreign) . e ; but, although invited to do so by the owner, I did not feeltempted to handle the birds in order to ascertain their exact sexualdifferences. Red-throated Amazon (Chrysotis collaria). The beak of the male is more slender and has a longer terminalhook than that of the female. The only sexed female shows muchless white on the crown than the males. One of the latter isevidently a young bird, if it is correctly sexed, as it is a with rather a heavy beak. Amazons, Etc. 123 Active Amazon (Chrysotis agilis). The beak of the male is long
. How to sex cage birds (British and foreign) . e ; but, although invited to do so by the owner, I did not feeltempted to handle the birds in order to ascertain their exact sexualdifferences. Red-throated Amazon (Chrysotis collaria). The beak of the male is more slender and has a longer terminalhook than that of the female. The only sexed female shows muchless white on the crown than the males. One of the latter isevidently a young bird, if it is correctly sexed, as it is a with rather a heavy beak. Amazons, Etc. 123 Active Amazon (Chrysotis agilis). The beak of the male is longer and slightly narrower than that ofthe female, and has a longer terminal hook. Short-tailed Parrot (Pachynus brachyurus). The beak of the male is shorter and heavier than that of thefemale, and has a broader terminal hook. In the sexed exampleof the female the naked skin round the eye is much darker than inthe male. The structure of the beak in this species is interestingas being a reversal of the usual sexual differences in the HEADS OF MALE AND FEMALE SHOUT-TAILED PARROT. Red-vented Parrot (Pionus menstruics). As in the preceding species, the beak of the male in this Parrotis larger and broader than that of the female, with a shorterterminal hook. Sordid Parrot (Pionus sordidus). Only the male is sexed in the Museum. The female is probablya smaller bird, having a rather broader beak; but, unhappily, thereare only three examples in the National Collection. 124 How to Sex Cage Birds. Maximilians Parrot (Pionus tnaximiliani). In fully adult males the beak is much larger, though rather moreslender than that of the females ; but in young birds (as might havebeen expected) the beak is almost as broad, excepting towards thetip, as that of the female. White-headed Parrot (Pionus senilis). In this species the beak of the male is larger, longer, and lessarched than that of the female, the terminal hook is also longer, andthe entire bird slightly larger. Bronze-winged Pa
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