THE BIRDS OF AUSTRALIA. 
Key to the Species. 
A. Generally smaller ; wing about 80 mm. or less ; under- 
surface rufous or vinous. 
a'. Bill slender ; sides of upper breast with large black 
spots . . . . . . . . . . . . . . maculosa, p. 79. 
h' . Bill stout. 
a". Upper-parts more or less grey ; sides of upper 
breast narrowly barred with black and white . . pyrrhothorax, 
p. 91. 
6". Upper-parts more or less reddish or vinous .. velox, p. 93. 
B. Generally larger, wing about 80 mm. or more ; no rufous 
or vinous on the under-surface. 
c' . Abdomen and flanks dull ashy-grey . . . . . . melanogaster, 
d' . Abdomen and flanks white or buff. p. 81. 
c" . Chest and breast uniform without spots ; forehead 
slate-colour . . . . . . . . . . olivii, p. 89. 
d" . Chest and breast spotted or barred ; forehead 
spotted with white . . 
a'" . Bill stout ; sides of crown chestnut . . castanota, p. 87. 
6"'. Bill slender ; sides of crown blackish . . varia, p. 83. 
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