6 The Bird Rock Group. 
Gardiner’s, Fisher’s, Muskeget, and Penikese Islands. Martha’s 
Vineyard, between the two last named, contains the sole survivors 
of the Heath Hen or Eastern Prairie Chicken (see gallery, case J). 
Certain islets along the coast of Maine form suitable homes for 
Herring Gulls (see gallery, case B), and going farther north, 
into the Gulf of St. Lawrence, we find several rocky islets, which, 
either because of their isolation or precipitousness, are ideal 
resorts for sea-fowl. Chief among these is 
Birp Rock. 
Bird Rock, and its neighbor Little Bird Rock, belong to the 
Magdalen Group, and are situated fifty miles northwest of Cape 
MAP SHOWING LOCATION OF THE BIRD ROCKS. 
Breton, the nearest mainland, and twelve miles east of Bryon 
Island, the nearest member of the same group. It is 351 yards 
long, from 50 to 140 yards wide, and rises abruptly from the sea 
to a height of from 80 to 140 feet. Its vertical rocky walls are 
weathered into innumerable ridges, shelves, and crevices — fit 
sites for the nests of the sea birds which for centuries have made 
