132 How to Sex Cage Birds. 



Black-tailed Parrakeet (Polytelis mekmura). 

 The beak of the male is of a brighter red than that of the female; 

 it is shorter and more arched, more triangular when viewed from 

 above, with shorter terminal hook. « The female is dull olive-green, 

 darker on the back; rump, breast, and abdomen olive, with a 

 yellowish tinge ; a greenish-yellow patch on the wing-coverts ; quills 

 deep blue ; some red on the secondaries and greater wing-coverts ; 

 tail-feathers bluish-green, the lateral ones margined on the inner 

 webs, and tipped with rose" (Parrakeels, p. 124). 



Alexandra Parrakeet (Spathopterus alexandrce). 

 The beak of the male is of a brighter red than that of the female; 

 it is distinctly broader and more arched ; he is also a larger bird, 

 has a bluer crown, greener cheeks and under parts, especially as 

 regards the breast. He also possesses spatular terminations to the 

 third primary, which are wanting in the female It is on this 

 character that the genus Spathopterus has been based, and, therefore, 

 according to some modern workers, who ignore secondary sexual 

 characters, it would be regarded as a mere section of the genus 

 Polytelis. 



Crimson-winged Parrakeet (Ptistes erythropterus). 

 The male is larger than the female, and his beak is much shorter, 

 more arched, and more triangular when viewed from above. lhe 

 adult female is dull green, more yellowish below ; rump blue ; some 

 of the upper wing-coverts tipped with red ; the lateral tad-feathers 

 edged with pink on the inner webs " (Seth-Smith, Parrakeets, p. 131). 



King Parrakeet (Aprosmictus cyanopygius). 

 The beak of the male is considerably longer, more arched, and 

 with much longer terminal hook than that of the female. "The 

 adult female has the head, back, wings, and tail dark green ; throat 

 and chest duller green, with a vinous tinge ; abdomen and flanks 

 scarlet; bill blackish" (Parrakeets, p. 134). 



Red-shining Parrakeet (Pyrrhulopsis splendens). 

 The male is larger than the female ; his beak is altogether larger, 

 longer, more arched, with more slender terminal hook. The plumage 

 does not differ in the sexes. 



Tabu an Parrakeet (Pyrrhulopsis tabuensis). 

 The male is larger than the female ; his beak is much longer, with 

 longer terminal hook. The plumage of the sexes is similar. 



Masked Parrakeet (Pyrrhulopsis personata). 

 The male is larger than the female, and has a longer, broader, and 

 altogether much heavier beak. In the colouring of their plumage 

 both sexes are alike. 



