374 MICHIGAN SURVEY, 1908. 



Eange : Eastern North America to the Plains, breeding from northern 

 New England and northern New York northward to Labrador, and ^n 

 the Alleghanies south to northern Georgia; West Indies and Guatemala 

 in winter. Accidental on the Parallon Islands, California. 



Stations : Rock Harbor, Spruce and Balsam Forest, I, 2-3 ; Tamarack 

 and Arbor 'Vitae Swamps, I, 4 ; Tamarack and Spruce Swamp, II, 2-5 ; 

 Siskowit BaT, Forest, V, 4; Washington Island, Clearing, I, '04; Forest, 

 II, '04. 



Migrant: August 28; September 12. 



The Black-throated Blue Warbler was not common on any part of 

 Isle Eoyale. We found them in the spruce, tamarack and balsam 

 forests and swamps, especially where there was considerable under- 

 brush. No young were seen, although it undoubtedly bred on the island, 

 as males and females were seen as early as July 8. 



87. Deiidroica coronata (655). Myrtle Warbler. 



Ban'ge: Eastern North America, chiefly sitraggling more or less 

 commonly westward to the Pacific; breeds from the northern United 

 States northward, and winters from southern New England and the 

 Ohio Valley southward to the West Indies, and through Mexico to 

 Panama. 



Stations : Beach at Eock Harbor, I, 1 ; Spruce and Balsam Forest, 

 I, 2-3; Small Islands, III, 1. Forest, V, 4; Old Burning, V. 9. Wash- 

 ington Harbor, clearing, I, '04 ; forest, II, '04. 



Breeding: Nest and young, July 7 and July 27. 



Migration: Last seen on September 12. 



The Myrtle Warbler was fairly common in the balsam and spruce 

 forest, but was often found feeding along the rocky shores. Although 

 a tree nester, and principally an arboreal feeder, it commonly descended 

 to the ground in search of food; this was particularly noticeable on the 

 bare rocks along the shore of Rock Harbor. They were not as com- 

 mon at Siskowit, and only scattered migratory flocks were observed at 

 Washington Harbor. 



Breeding Notes : A nest containing four well feathered young was 

 found on July 7. It was situated in a Jack pine on the extreme edge 

 of a cliff, and about forty feet above the water. The nest was placed 

 at the end of a horizontal limb, about ten "feet from the ground, six 

 feet from the trunk of the tree, and directly over the water. It was 

 composed of balsam twigs and needles and lined with feathers of the 

 Sharp-tailed Grouse and Canada Jay, being a little larger than a Chip- 

 ping Sparrow's. No overhanging branches afforded the nest any pro- 

 tection from the sun or storms. The surroimding trees were Jack 

 pines and spruces. The bird flew directly to the nest as long as the 

 observer was out of sight, but at other times it approached very cauti- 

 ously, and when about flity feet from the nest it would drop close to 

 the ground, flying low until almost under the nest. It always left the 

 nest by flying low along the top of the cliff. There was very little 

 underbrush within fifty yards of the tree on which the nest was situated, 

 and the surrounding Jack pines and spruces were scattered so that 

 the sun had access to the ground. The small plant life was composed 

 mostly of mosses and heath plants. 



On July 27 another nest was found, this time on an island at the 



