32 



Birds of North Carolina 



These graceful gulls arc seen on the North Carolina coast (hiring the period of 

 migration, when they frequently associate in considerable numbers. Coues, in 

 1871, said that at Fort Macon they were strictly migrant, occurring in April and 

 Way, and again from September to November. Bishop took one at Pea Island, 



V : 



Fig. 11. B0N.M'.\RTE'3 Gull. 



January 28, 1901. "A flock of more than eighty was seen close to the liciirh at 

 Fort IMacon, A])ril 10, 1898, and five specimens were taken by our ])arty. One was 

 killed at Lindley Park, near Greensboro, March 20, 1904, and brought to me for 

 identification. The species probably occurs inland not infreciuently." — Pearson. 



SUBFAMILY STERNIN/E. TERNS 



Genus Gelochelidon iBrehm.) 

 16. Gelochelidon nilotica (Linn.). (iuLL-BiLLED Tern. 



Ads. in summer. — Top of head and nape black: bark and wings pale pearl -gray; outer web 

 of outer primaries silvery; tip and shaft-part of inner web darker; inner part of inner web, 

 except for afnarrow margin at end of featlier, white; tail white, slightly forked, the middle 



Fig. 12. Gill-billed Terk. 



feather grayish; utulcrparts white; bill and feet black, the forinor ratlicr .-^hort and stout. 

 Ads. in icintcr. — Similar to the above, but lop of the head white, auriculars gravish, and a 

 space in front of the eve blackish. L., 14.50; W., 12.00; T., o..^0; B., 1.40; depth of B. at 

 ba.se, .50. {Chap., Jiirds of E. X. A.) 



Range. — Cosmopolitan, chiefly on sea-coa,sts. 



Range in Norlk Carolina. — Coastal region in summer; rare. 



