376 MICHIGAN SURVEY, 1908. 



Eidge Clearing, II, 3. Forest on Trail to Sisko-svit Lalie, V, 4. Wash- 

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



Besident: July 7. 



Migrant: Angnst 28; September 12. 



Only a few of these birds were seen and it is probably an uncommon 

 summer resident throughout the island. A fine adult male was seen 

 feeding in the balsam-spruce forest (I, 3) July 7. On July 14 another 

 male was observed in a thick second growth of birch, aspen and spruce, 

 near the edge of the tamarack swamp (II, 2). From its actions we 

 thought a nest was near, but it could not be found. A badly moult- 

 ing male was taken August 8 near Siskowit Lake. At Washington Har- 

 bor it was observed only as a migrant, being observed from August 

 28 to September 12. At times, particularly during Warbler waves, 

 they were abundant, but among all those oljserved, only a few adult 

 males were seen, and the young greatly outnumbered the females. 



90. Dciidroica striata (061). Black-poll Warbler. 



Range: Eastern North America west to the Eocky Mountains, north 

 to Greenland, the Barren Grounds, and Alaska, breeding from northern 

 New England and the Catskills northward. South in winter to northern 

 South America, but not recorded from Mexico or Central America. 



Stations : Wa.shingion Harbor, clearings, I, '04 ; Forest, II, '04. 



Migration: August 2.5 to September 25. 



At first the Black-polls were rather uncommon, but they rapidly in- 

 creased in numbers until August 26, when the great wave of this species 

 commenced. 



91. Dcndroica vircns (667). Black-throated Green Warbler. 

 Range: Eastern North America to the Plains, north to Hudson Bay 



Territory, breeding from Connecticut and northern Illinois northward, 

 and south along the Alleghanies to South Carolina. In winter, south 

 to Cuba and Panama. Accidental in Greenland and Europe. 



Stations : Rock Harbor, Natural Rock Clearing, I, 2 ; Balsam-spruce 

 forest, I, 3; Tamarack and Arbor Vitae swamps, I, 4; 

 Sphagnum-spruce bog, I, 6; Tamarack swamp, II, 2; 

 Forbes Lake, II, 5; Birch Forest, III, 4. 

 Siskowit Lake, Balsam-Birch Forest, V, 4. 

 Washington Harbor, Border of Clearings, I, '04; Forest 

 along river, II, '04. 

 Breeding: Young with adult seen July 9. 



The Black-throated Green Warbler fed on the ground as well as in 

 the tops of the trees, but the latter place was much preferred, and, ex- 

 cept during the breeding season, when they hunt everywhere for food, 

 they were usually found there. 



Breeding Notes: A young Black-throated Green Warbler was seen 

 in company with the male on July 9 in the tamarack swamp, I, 1. 

 July 11 a nest containing young was found in a cedar tree about 20 

 feet from the ground. It was composed of moss and grass. The nesting 

 site was in a rather open spot where the trees were mostly cedar and 

 birch, and only a, little underbrush and low vegetation was present. 

 When we were near the nest the female Black-throat moved anxiously 

 about from limb to limb, keeping up a constant chirping, but would not 

 approach closely. Another nest containing young was found the sanse 



