ECOLOGY OF ISLE3 ROYALE. 377 



afternoon. Both parents were very nervous in their movements, remain- 

 ing Avithin a few feet of the observer and scolding constantly. The 

 male had food in its month when first seen. A male, female and young 

 were found in a birch forest July 27. 



92. Dendroica palmarum (672). Palm Warbler. 



Range: Northern interior to Great Slave Lake; in winter South 

 Atlantic and Gulf States, the West Indies and Mexico. Of rare but reg- 

 ular occurrence in the Atlantic States in migration. 



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



Migration : August 28 to September 21 on. 



The Palm Warbler was second in numbers only to the Tennessee. 

 From August 28 to the middle of September these birds were always 

 found in considerable numbers along the road connecting the clearings. 

 It was also found in the first clearing, usually near the border where 

 the alders and other shrubs furnished a large share of its insect food as 

 well as a protection from the numerous hawks. The birds were quite 

 tame and often came into the house through the open doors and windows. 

 The birds have a characteristic habit of jerking the tail up and down, 

 which serves as an aid to identification at quite a distance. As a rule 

 they were usually found in flocks, usually numbering about thirty or 

 forty. 



93. Seiuriis aurocapillus (674). Oven-bird. 



Range: Eastern North America, north to Hudson Bay Territory and 

 Alaska, breeding from Kansas, the Ohio Valley, and Virginia north- 

 ward. In winter Florida, the West Indies, southern Mexico, and Central 

 America to Panama. 



Stations : Rock Harbor, Sphagnum-spruce bog, I, 6 ; Benson Brook, 

 II, 1; Birch forest. III, 4; Tamarack swamp, I, 4. 

 Siskowit Bay, Balsam-Birch forest, V, 4; Tamarack 



swamp, V, 5. 

 Washington Harbor, borders of clearings, I, '04; found 

 along river, II, '04. 

 Resident: Rock Harbor, July 8. Siskowit Bay, Aug. 12. 

 Breeding: Young seen August 12. 



The Oven-bird was not common on the island and occurred only in 

 limited numbers in its favorite habitats, such as the cool, damp forest 

 along the streams and in the tamarack swamp. No nests were found, 

 but young able to care for themselves were taken in the tamarack swamp 

 (V, 5) August 12. It was uncommon even in migration and was last 

 seen September 12. 



94. Seiuru-i novehoracensis notahilis (675a). Grinnell's Water 

 Thrush. 



Range: Western United States, from Indiana and Illinois westward ' 

 to California, and north into British America. Casual in migrations 

 eastward to the Atlantic coast. Winters from the southern border of the 

 United States southward to Lower California, Mexico and northern 

 South America. 



Stations: Rock Harbor, Along Benson Brook, II, 1; Forest, V, 4; 

 Siskowit Lake, V, 6; Old Burning, V, 9. 

 Washington Harbor, Clearing, I, '04; forest along river, 

 II, '04. 



