AVES. 15 



LONGIPENNES. 



LARIDAK. 



27. Larus atricilla Linne\ 



Laughing gull; Black-headed gull; Black-poll. 



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

 Audubon, Birds of Amer., 1844, vol. 7. p. L36, pi. 443. Egg, 

 Capen, L886, pi. 23, fig. 1-3. 



Seacoasts; nests on the ground. 



Me. — Rare summer residenl (Metinic Green I<l., Western Egg 



Rock). (Late April)-Sept. Eggs, .June 30-July 5. 



Vt.— Rare visitor: Bristol, May, 1883; St. Albans. 



Mass. — Uncommon summer resident south of ('ape Cod (Mus- 

 keget Id.; formerly at Egg Rock, Xahant); elsewhere a rare visitor. 

 May 7-Oct. 1 (late Nov.). Eggs, June 7-July 10. 



R.I. — Rare summer visitor: Seakonnet Point, Sept., 1884; Sea- 

 konnet Point, Aug. 24, 1903. 



Conn. — Rare summer visitor; may breed rarely. 



28. Larus Philadelphia (Ord) Gray. 



Bonaparte's gull. 



Sterna Philadelphia Ord, Guthrie's Geogr., hist., and commer- 

 cial grammar, 2d Amer. ed., 1815, vol. 2, |>. 31!). No locality; 

 probably Philadelphia. 



Larus bonapartii Richardson. Audubon, Birds of Amer., 1844, 

 vol. 7, p. 131, pi. 442. Egg, Seel.olun, 1896, p. 100. pi. 36, fig. 7. 



Salt and fresh water; nests on stumps or in low trees. 



Me. — Common migrant, rare in winter. April-June 20; July 

 25-Nov. 20 (winter). 



X. H. — Common migrant and rare winter resident coastwise. 

 May; Aug. 3-Oct. 20 (winter). 



Vt. — Hare migrant; ? "summer resident." 



Mass. — Common migrant, mainly coastwise, and rare winter 

 resident. Mar. 10 June 3; July 24 Nov. 25 (winter). 



