latter colour being richest, and predominating on the abdomen, lower part of the back, and upper tail- 
coverts ; wings very dark or blackish brown, the coverts largely tipped with white, forming two conspicuous 
bands across the shoulder, whence the specific name ; a few of the tertiaries are also tipped with white ; 
tail very dark or blackish brown ; primaries and tail-feathers very narrowly margined with yellowish white ; 
bill brownish horn-colour ; feet purplish brown ; irides dark brown. 
The female has the forehead, face, and throat grey; crown of the head mottled grey and pale brimstone- 
yellow, which latter colour predominates on the lower part of the back, where it becomes almost pure 
yellow ; under surface grey, washed with brimstone-yellow on the breast, upper part of the abdomen, and 
flanks ; lower part of the flanks streaked with brown ; wings and tail as in the male, but more conspicuously 
margined ; upper tail-coverts tipped with white ; bill, feet, and irides as in the male. 
The Plate represents a male and a female of the size of life. 
