lO Campbell, Dichotomous Key. 



83. Head and neck white ; sexes similar. 



Tadorna rajah (White-headed Shielduck). 

 Head and neck glossy black (male) or head brown (female). 



Casarca tadornoides (Shielduck or Mountain-Duck). 



84. Feathers of lower flanks with broad longitudinal marks ; sides of 



chest rufous, black-barred or quite plain. 



Dendrocycna. Tree-Ducks. 85 

 Feathers of lower flanks neither prominently marked nor plain . . 86 



85. Flanks for most part white, with broad black stripes ; no chestnut 



on wing. D. eytoni (Plumed Whistling-Duck). 



Upper flanks plain rufous ; deep chestnut mark on shoulder. 



D. arciiata (Whistling-Duck). 



86. Bill spoon-shaped . . . . . . . . . . . . 87 



Bill with parallel sides . . . . . . . . . . 90 



Sy. General colour brownish, with other colours prominent . . . . 88 



General colour blackish, freckled with grey (no wing-patch). 



Stictonetta ncevosa (Freckled Duck). 



88. Soft membrane hanging from sides of bill near tip, rose-pink mark 



behind eye. Malacorhynchus membranaceus (Pink-eared Duck). 

 No soft membrane ; no pink colour. Spatula. 89 



89. Head and upper neck glossy green (male), deep brown, barred 



reddish (female). S. clypeata (Common Shoveller). 



Head and upper neck brownish-black (male), very brown tail 



(female). S. rhynchotis (Shoveller or Blue-wing). 



90. Distinct black band through eye, with light band above. 



Anas superciliosus (Black Duck). 

 No bands on face ; head and neck metallic green (male) ; young and 

 female brownish throughout, streaked with black. 



Nettion castaneum (Teal). 



No bands on face ; sexes similar ; weight i lb. 2 ozs., against i lb. 



8 ozs. of previous species. Nettion gihherijrons (Grey Teal). 



91. Large distensible pouch on bill, which is 18 inches long. 



Pelecanus conspicillatus (Pelican). 

 Bill less than 6 inches ; pouch absent or not prominent . . . . 92 



92. Neck long and slender ; upper surface black . . . . . . 93 



Neck stout ; upper surface light (including Fregata, No. 98, which 



are blackish with forked tails, and some Sula, No. 99, which 



are brown) . . . . . . . . . . 98 



93. Bill pointed. Plotiis novcp-hoUandicc (Darter). 



Bill hooked at extremity. Phalacrocorax. Cormorants. 94 



94. Plumage black . . . . . . . . . . . . 95 



Plumage black and white . . . . . . . . . . 96 



95. Length 35 inches ; space round eye yellow. 



P. carbo (Black Cormorant). 

 Length 25 inches ; space round eye blackish. 



P. sulcirostris (Little Black Cormorant). 



96. Length 23 inches : broad white eyebrow. 



P. melanoleiiciis (Little Cormorant). 

 Length above 25 inches ; no white above eye . . . , . . 97 



97. Bill 1.8 to 2 inches ; eye-space blackish. 



P. goiddi (\\'hite-breasted Cormorant). 



