194 



SEXUAL SELECTION: BIRDS. 



[Part II. 



first plumage are said to resemble the mature male. 18 

 There is also reason to believe that the male undertakes 

 the duty of incubation, for Mr. Swinhoe 19 found the fe- 



li\ ,. W( 



Fig. 60.— Rhynchsea capensis (from Brehm). 



males before the close of the summer associated in flocks, 

 as occurs with the females of the Turnix. 



The females of Phalaropus fulicarius and P. hyperbo- 

 reus are larger, and in their summer plumage "more gayly 



18 'The Indian Field,' Sept. 1858, p. 3. 



19 'Ibis,' 1866, p. 298. 



