XVI. 
THE YOUNG LIKE THE ADULT MALES. 
203 
t],' S Baore developed and complex in the male than in 
j ' e fe male ; but in the Bhjnchsea Australis it is simple 
( 11 tij e male, whilst in the female it makes four distinct 
^Involutions before entering the lungs. 1 ’ The female 
before of this species has acquired an eminently 
n^'iiline character. Mr. Blytli ascertained, by exa- 
^I'lting many specimens, that the trachea is not con- 
8 ° >1,; ed in either sex of B. Bengalensis, which species 
0 closely resembles B, Australis that it can hardly be 
,'dii'guiyhed except by its shorter toes. This fact is 
striking ■ ’ ■ 
^XUul 
instance of the law that secondary 
... — characters are often widely different in closely- 
. . lft d forms; though it is a very rare circumstance 
letl such differences relate to the female sex. The 
' Mlll g of both sexes of li. Bengalensis in their first 
jl^niage arc said to resemble the mature iuale. lb 
l6 re is a i so reason to believe that the male undertakes 
j duty of incubation, for Mr. Swinhoe 19 lound the 
D '''ales before the close of the summer associated in 
Tl, 
*-S as occurs with the females of the Turnix 
116 females of Phalarojms fulicarivs and P. liyperlo- 
, ill 'e larger, and in their summer pi urnage “more gaily 
I attired than the males.” But the difference in colour 
Jt'veen the sexes is far from conspicuous. The male 
^ () Ue of P.fulicarius undertakes, according to Professor 
^ ^strup, the duty of incubation, as is likewise shewn 
l be state of his breast-feathers during the breeding- 
The female of the dotterel plover ( Eudromias 
h ° Y ^ellus) is larger than the male, and has the red 
^ack tints on the lower surface, the white crescent 
more 
str 'be breast, and the stripes over the eyes, more 
0,J gly pronounced. The male also takes at least a 
is Quid’s ‘ Handbook of the Birds of Australia,’ vol. ii. p. 275. 
r ke Indian Field,’ Sept. 1858, p. 3. 18 1 Ibis,’ 1866, p. 298. 
