492 Bird -Lore 



they succeeded in raising a number of young this year. On August 26 I saw 

 no less than a dozen young, all on the wing and strong, and saw one as far 

 away as Monhegan. This season seems to have been successful. 



Terns. — No distinction is made between Common and Arctic Terns, as 

 in many places they are hopelessly mingled in the gyrating masses, yet in the 

 region inspected they were chiefly of the Common species. In Penobscot Bay, 

 colonies were found at the following places: Robinson Rock (Islesboro Group), 

 outer 150, and inner 50 birds; Mouse Island, 150 birds; Egg Rock (Fox Island 

 Group) 100 birds. At Sloop Island, many Terns were resting and fljang about 

 the island as if breeding, but no nests or young were found, and it should be 

 noted that the place was occupied by Herring Gulls. Young Terns were on 

 the wing at sea; yet at nearly all of the places visited young in all stages of 

 growth were found. No mortality was detected in Penobscot Bay. The birds 

 at most of the places were wild. 



In Muscongus Bay, Terns were found only on Eastern Egg Rock, where a 

 considerable mortality of young was found, but the cause could not be deter- 

 mined. The dead young were fledged, yet many seemed too small to have 

 flown, and apparently were not shot. They were scattered over the island, in 

 open spots, on rocks and on chickweed beds, as if seeking the sun. In Casco 

 Bay a house had been built on Outer Green Island and occupied by a fisherman; 

 as a result, most of the Terns left the island, and an unusual number appeared 

 on Lower Mark Island. The Bluff Island colony continued throughout the 

 season, apparently as large as usual. 



Black-crowned Night Heron. — Two visits were made to a large" colony 

 of Herons in Scarborough, and the conditions were most gratifying; no signs 

 of molestation were detected. On the first visit (May 15), the birds were in 

 the midst of laying, from one to three eggs being found in every nest. On the 

 second visit (June 19), the young were abundant and noisy. 



Osprey. — Formerly Fish Hawks bred not uncommonly from Portland 

 Harbor eastward; but their great nests have been robbed and tumbled to 

 earth, and some of the birds have been shot. They have gradually been 

 restricted in this range, few, if any, breeding between Portland and the Kennebec 

 River. They were formerly niunerous throughout Penobscot Bay, and it is 

 gratifying to be able to state that they are not rare there at present. More 

 Fish Hawks are clustered about the Fox and Deer Island groups than elsewhere 

 in Maine. On several of the islets and ledges northeast of North Haven, they 

 place their nests on the ground, or on rocks, as well as in trees. 



