418 WEB-FOOTED BIRDS. 



protuberances are naked and horny, and the central one is feathered 

 farther down. As in the other species of this section, the bill and 

 forehead are inflated, causing the head to appear lengthened and the 

 crown depressed. 



The female is browner ; and the under plumage paler ; the back 

 and wing coverts narrowly edged with grey ; the breast, flanks arud 

 ears, with some whitish edgings. Bill black ; its base not so much 

 inflated, and the nostrils smaller than in the male, 



