BIRDS OF EASTERN MASSACHUSETTS. 157 



Common at Ipswich in autumn. Abundant on the south 

 shore during the breeding-season. Breeds on Muskegat 

 Island abundantly ; generally building a nest of sticks in a 

 hollow among the Sand-hills. 



277. Sterna Antillarum, Coles. — Least ,Terny 

 "Jack-knife Gull." Not as common as the preceding. 

 Breeds later, not until July ; lays from one to four eggs. 

 Have found a few breeding at Ipswich. Also breeds on 

 Nantucket. 



Forster's Tern {Sterna Forsterii, Nutt). This species 

 appears to differ from hirundo in having the outer web of 

 the outer tail-feather white. I have never met with it. 



278. Hydrochelidon fissipes, Geay. — Short-tailed 

 Tern. Rare in autumn. Mr. J. F. Le Baron shot a speci- 

 men at Ipswich, August 11, and saw another. 



279. Haliplana fiiliginosa, Wagl. — Sooty Tern. 

 Mr. Samuels says he " found it breeding on Muskegat 

 Island." I think it occurs rarely. 



PROCELLARID^, — The Petrels. 



280. Puffinus major, Faber. — Greater Shearwater, 

 Not uncommon off the coast in winter. 



281. PuSinus Anglorum, Temm. — Mank's Shear- 

 water. Rare off the coast in winter. 



282. PuSinus fuliginosus, Strickl. — Sootij Shear- 

 water, Common off the coast during spring, autumn, and 

 winter. 



283. Procellaria pelagica, Linn. — Stormy Petrel. 

 Rare off the coast. 



284. Oceanites oceanica, Coues. — Wihon^s Petrel. 

 Common off the coast. 



285. C3miochorea leucorrhoa, Coues. — LeacNs 

 Petrel. Abundant off the coast. This and the two pre- 



