AVES. 13 



LONGIPENNES. 



LARIDAE. 



Plymouth, Jan. 5, 1888 (Dwight, immature); Boston and Swamp- 

 scott, two or more, Dec. 29, 1907-Mar. 13, 1908. 



Coxx. Rare winter visitor: Stamford, Feb. 16, 1894 (Dwight, 

 immature). 



24. Larus marixus Linne. 



Great black-backed gull; Black-back; Black minister; Coffin 

 carrier; Ghost-bird; Minister; Saddle-back. 



Linne, Syst. nat., ed. 10, 1758, vol. 1. p. 136. "in Europa." 

 Audubon, Birds of Amer., 1844, vol. 7, p. 172, pi. 450. Egg, 

 Capen, 1SS6, pi. 22, figs. 2, 3. 



Seacoasts; nests on the ground. 



Me. Common migrant and winter resident; casual summer 

 visitor. Sept. 21-April (summer). 



N. H. Common winter resident coastwise. Oct. 15-spring. 



Mass. Common winter resident coastwise ; a few non-breeding 

 birds summer. Late Aug -May 1 (summer). 



R. I. Common winter resident coastwise. Aug. 26-April 23. 



Coxx. Uncommon winter resident coastwise. Fall-Mar. 



25. Larus argextatus Pontoppidan. 



Herring gull; Gray gull; Sea gull; Winter gull. 



Pontopp., Danske atlas, 1763, vol. 1, p. 622. Xo locality. 

 Audubon, Birds of Amer., 1844, vol. 7, p. 163, pi. 448. Egg, 

 Capen, 1886, pi. 22, fig. 4-6. 



Seacoasts, large rivers and lakes; nests on the ground or rarely 

 in trees. 



Me. Abundant resident, breeding mainly on outer islands, 

 rarely on inland lakes. Eggs, (May 14) June 12- July IS (Aug. 

 19). 



