352 
Doe. Cy Ka 
in different ftages of life, and no doubt but fome of the males of infe- 
rior plumage have been taken for females: but the true female has only 
of late been precifely determined. I owe the firft hint of this to my 
valued correfpondent the late Mr. Tun/ftal, but the pofitive certainty 
of the circumftance to that indefatigable naturalift Mr. Boys, who was 
at the pains to procure for me feveral {pecimens. 
The length of the female bird is eighteen inches and three-quarters ; 
from the bill to the end of the toes, twenty inches and a half; breadth 
thirty-one inches ; weight thirty ounces: the bill is broad, flat, of a 
pale blue, with a black knob: irides yellow: head dark brown: at 
the bafe of the bill is a band of white, nearly half an inch broad, 
paffing quite round the forehead, cheeks, and throat: breaft dark 
brown, the feathers tipped with darker brown: back and {fca- 
pulars light grey, tranfverfely waved with irregular dufky lines: 
belly dirty white; vent the fame, waved with narrow dark lines: 
rump and tail very dark brown; the latt very fhort, confifting of four- 
teen feathers: greater quills the fame: fecondaries white, tipped with 
brown ; but the ends of the greater quills are darker than the reft: 
legs dufky blue : webs black. ‘The tracheal Jabyrinth in the male of 
this {pecies, is placed the fame as in the MadJard; it 1s rounded on 
one fide, and flat on the cther; in fhape irregular: the flat furface is 
for the moft part open, except round the rim, and an wregular bony 
arch croffing it from fide to fide: independent of theie, the furface is 
covered with a delicate fine elaftic membrane, ftretched over the fur- 
face, giving the appearance of the head of a drum: a juft idea of the 
ftru@ture may be formed by infpecting the plate above referred to in 
the Lin. Lran/. 
