GULLS 



103 



narrowly margined with black outwardly 

 and more broadly at tip; tail and beneath. 



Fig. 72. 



Bonaparte Gull, first year. 1-5. 



white; bill, black, feet, yellow, fig 71 upper; 

 in winter white with dusky spot back of eye; 

 young differs in having wing black margined 

 all around excepting near bend, fig 72, thus 

 differing from the young Kittiwake which 

 has wing black margined all around fig. G3*, 



