THE YOUNG LIKE THE ADULT MALES. 205 
"'At. XVI. 
ft 1 
cc or east. She is usually the more courageous and 
«e Silistio. She makes a deep hollow guttural boom, 
. ( s P e cially at night, sounding like a small gong. The 
<i ti ll e has a slenderer frame and is more docile, with 
< t J v oiee beyond a suppressed hiss when angry, or a 
itj.j ' '' hie not only performs the whole duty of 
U 1 a tion, but has to defend the young from their 
■i lr er > “ for as soon as she catches sight of her pro- 
she becomes violently agitated, and notwith- 
>• ^ <Uit ling the resistance of the father appears to use 
'; :r utmost endeavours to destroy them. For months 
* wards it is unsafe to put the parents together, 
Ay 0 er d quarrels being the inevitable result, in which 
hem id. e generally comes off conqueror .” 23 So 
(J|| ] "hh this emu we have a complete reversal not 
t!) f ? hbc parental and incubating instincts, but of 
i>ej USUa ^ mora ^ qualities of the two sexes; the females 
'Hi l ® S;tVu ge, quarrelsome and noisy, the males gentle 
^'‘good. The case is very different with the African 
1^1 c *h for the male is somewhat larger than the fe- 
t fil ® an d has finer plumes with more strongly con- 
dJ ' c °i° urs j nevertheless he undertakes the whole 
j- °f incubation . 21 
V,.. ' Vl U specify the few other cases known to me, in 
the female is more conspicuously coloured than 
l °ule, although nothing is known about their man- 
incubation. With the carrion-hawk of the Falk- 
J 6r of 
t, Viands ( Milvago leueurus ) I was much surprised 
Hi] lj y dissection that the individuals, which had 
" ! ’ r tints strongly pronounced, with the cere and 
orange-coloured, were the adult females; whilst 
•gs 
1 1 o i j t tUe excellent account of the habits of this bird under confino- 
. Mr- A. W. Bennett, in ‘Land and Water,’ May, IS6S, p. 233. 
>> /' delator, on the ineubation of the Struthionea 
’ 0, 1863. 
' Froc. Zoo. 
