158 



How to Sex Cage Birds. 



Bartlett's Ground Pigeon (Phlogcenas crinigera). 



The female is smaller and has a slightly more slender bill than 

 the male when viewed in proBle ; its general plumage is a good deal 

 like that of the male, but the crown of its head is of a duller and 

 darker green. 



Stair's Ground Pigeon (Phlogcenas stairi). 



The female is smaller than the male, and has a shorter bill ; the 

 forehead and breast wholly dull pale chocolate, back of crown 

 darker ; back and wings washed with olive in place of the magenta 





M 



3- 



few 



HEADS OF MALE AND FEMALE OF THE BLEEDING-HEART PIGEON. 



on the male ; abdomen brownish-ash, with no denned broad dark 

 purplish-chocolate band between it and the breast ; tail also paler 

 than in the male, the lateral feathers redder and with a subterminal 

 brown bar. 



Of the following large species I unfortunately omitted to commit 

 notes to paper when my pair was alive and in my possession, and as 

 the examples in the Museum Collection are unfortunately not sexed, 

 and no difference is recorded in the Catalogue, I shall have to trust 

 to my memory : whether the differences of which I made a mental 

 note are all constant or not I cannot say, therefore can only record 

 what I observed in my own birds, being assured that at least some 

 of the differences will prove to be constant. 



