THREE-TOED WOODPECKER. 167 



Pinus ponderosa, and never retires into the thick 

 damp forest. It arrives in small numbers at Col- 

 ville in April, and disappears again in October 

 and November, or as soon as the snow begins to 

 fall. Although I did not succeed in obtaining 

 its eggs, I saw in the month of May a pair nesting 

 in a hole bored in the branch of a very tall pine- 

 tree (Pinus ponder osa). This bird seldom flies 

 far, but darts from tree to tree with a short 

 jerking flight, and always whilst flying utters a 

 sharp, clear, chirping cry. The specimens sent 

 home were shot in the Colville valley. 



BLACK -BACKED THREE -TOED WOODPECKER 

 (Picoides arcticus, Swainson). I obtained this 

 bird once only ; it was on the summit of the Cas- 

 cade Mountains. It was late in September, and 

 getting cold ; the bird was alone, and flying rest- 

 lessly from tree to tree, but not searching for in- 

 sects. Both when on the wing and when clinging 

 against a tree, it continually utters a shrill plain- 

 tive cry. Its favourite tree appears to be the 

 Pinus contorta, which grows at great altitudes. 

 I do not think this woodpecker is found except 

 on the hill- tops. In the valleys and lower 

 plains it is replaced by the Banded Three-toed 

 Woodpecker (Picoides hirsutus), 



LOG COCK (Hylatomus pileatus, Baird.). Not 



