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, Coves. — Least Tern, 
“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 Forster, Nutt). This species 
appears to differ from Azrundo in having the outer web of 
the outer tail-feather white. I have never met with it. 
278. Hydrochslidon fissipes, Gray. — Short-tailed 
Tern, Rare in antumn. Mr. J. F. Le Baron shot a speci- 
men at Ipswich, August 11, and saw another. 
279. Haliplana fuliginosa, Waci. — Sooty Tern. 
Mr. Samuels says he “found it breeding on Muskegat 
Island.” I think it occurs rarely. 
PROCELLARID.E, — Tur Petrets. 
280. Puffinus major, Faser. — Greater Shearwater. 
Not uncommon off the coast in winter. 
281. Puffinus Anglorum, Temm.— Mank’s Shear- 
water. Rare off the coast in winter. 
283. Puffinus fuliginosus, Srricky. — Sooty Shear- 
water. Common off the coast during spring, autumn, and 
winter. 
283. Procellaria pelagica, Linn. — Stormy Petret. 
Rare off the coast. 
284. Oceanites oceanica, Cours. — Wilson’s Petre. 
Common off the coast. 
285. Cymochorea leucorrhoa, Covers. — Leach’s 
Petrel. Abundant off the coast. This and the two pre- 
