ECOLOGY OF ISLE ROYALS. 355 



Stations: Siskowit Bay; Forest, V, 4. 



Washington Harbor, clearing- and burned area, I '04. 



Resident: Julj^ 22 to September 17. 



The first of tliis species was seen July 22 and was met with every 

 now and then imtil September 17, although like the Hairy, it probably 

 stays all winter. It was found in all locations, but preferred burnings 

 and the more open birch woods. 



3G. Picoidcs arcticus (400). Arctic Three-toed Woodpecker. 



Range : Northern North America from the Arctic regions south to the 

 northern United States (oSiew England, New York, Michigan, Minnesota 

 and Idaho), and in the Sierra Nevadas to Lake Tahoe. 



Station : Washington Harbor, clearing along road and burned area, 

 I, '04. 



The Arctic Three-toed ^^'oodpecker was observed only at Washington 

 Harbor, where it was very rare, only two specimens being found, Sep- 

 tember 7 and 12. 



37. Sphyrapicus varkis (402). Yellow-bellied Sapsucker. 



Range : Eastern North America north to about Latitude 63° 30' 

 (north of Port Simpson), breeding from Massachusetts northward; 

 south in winter to the West Indies. Mexico and Costa Rica. 



Stations: Forest,- Y, 4. Washington Harbor, balsams at edge of 

 clearing, I, '04. 



Migration : September 13. 



A single specimen was found September 13 among the balsams at 

 the edge of the road (I, '04). This was a young female and probably 

 was raised on the island. 



38. Ceophloevs pilcatus atieticola (405a). Northern Pileated Wood- 

 pecker. 



Range : Formerly the heavily wooded region of North America south 

 of about Latitude 6.3.°, except in the southern Rocky Mountains; now 

 rare or extirpated in the more thickly settled parts of the eastern states. 



Stations : Siskowit Bay, Forest, V, 4. 



Washington Harbor, edge of clearing, I, '04, also dense 

 forest. 



Resident : Throughout the year. First seen Aug. 3 ; last on Sept. 18. 



None of these birds Avere observed at Rock Harbor, but evidences 

 of their work were numerous. Several were seen at Siskowit Bay and 

 one near Siskowit Lake trail (V, 7). On August 8 two were heard 

 near our camp, and by clapping the hands in imitation of their ham- 

 mering they were called within fifty or sixty feet of us, when one was 

 procui'ed. Another was taken on August 8 near camp (V, 3). 



They were very often heard at Washington Harbor and were seen 

 quite often, usually in the morning, but in rainy weather their call 

 could be heard all day. Several stubs containing nesting cavities were 

 found and some of the birds procured were young of the year. The 

 woodpeckers preferred the forest where large dead or dying trees were 

 to be found, usually in the vicinity of clearings, the large birches 

 usually being selected when feeding, possibly because they decayed much 

 more rapidly and contained more larvae than the balsams and spruce. 

 Unless called, the birds wer-e very shy and difficult of approach, al- 

 though when busily engaged in digging into a tree they would not leave 



