DIRECTORY TO BIRDS OF EASTERN NORTH AMERICA. 27 



lantic and southern oceans ; breeds on Kergulen Island in 

 February. Abundant off the eastern Fig. 25 



coast of the U. S. from June until 

 Sep. 



[XOTE: on page 21, under I>, I 

 stated that none of the order dive. 

 Since this was printed I find, up- g_ 

 on good authority, that the Fulmar g 

 occasionally dives a little way under ^ 

 water for its food. The Shearwaters 

 may also sometimes do this in order 

 to catch the squid upon which some f~= 

 of them feed, but I have never seen 

 one dive. ] 



D , B, g, 



1-5 

 SWIMMERS. 



^teg^itw. oj3od.es . 



Water birds of varying sizes, but many of them are large. 

 Fig. 26. Hind toe, connected with the anterior 



toes by a web, fig. 33 ; there is an exten- 

 sible pouch beneath the bill (gula sac) ? 

 fig. 31 ; external nostrils, very small, fig. 

 27, or wholly absent, fig. 31. A well de- 

 fined, easily recognized group of birds, 

 having well established and clearly sep- 

 arated families, genera and species ; com- 

 paratively few in number, but, excepting 

 the polar regions, generally distributed 

 throughout the world. Young, naked 

 when hatched, fig. 26, but soon covered 

 E, B, a, 1. 1-3. with down; helpless and fed by regurgita- 

 tion. Middle toe nail pectinated in some genera, fig. 33, 35. 



A. TROPIC BIRDS. Phaethontidae. 



Ocean birds' of moderate size, mainly white, but with 



some dark markings above ; bill, pointed; gula sac, mostly 



feathered, fig. 27; tail, short, graduated, but with the cen- 



tral feathers narrowed and greatly elongated, fig. 29 ; toes, 



