OTHER WOODPECKERS. 33 



In addition to the 7 species of woodpeckers whose food has been 

 already discussed, 57 stomachs have been examined, belonging to 12 

 species and subspecies, mostly from the southern and western parts of 

 the United States and British Columbia, as follows : 



stomachs, 



Niittall's Woodpecker {Dnjobates nuttalii) 7 



Eed-cookaded Woodpecker {Dryobatea lorealis) 12 



Baird's Woodpecker {Dryohates scalaris bairdi) 3 



Gilded Flicker ( Colaptea chrysoides) 3 



Eed-shafted Flicker ( Colaptes eafer) 11 



Northwestern Flicker ( Colaptes cafer saturatior) 5 



California Woodpecker (Melanerpes formicivorus bairdi) 1 



Lewis's Woodpecker (Melanerpes torquatus) 3 



Gila Woodpecker {Melanerpes uropygialis) 1 



Eed-breasted Sapsucker (Sphyrapicus ruber) 1 



Arctic Three-toed Woodpecker (Picoides arcticus ) 7 



Alpine Three-toed Woodpecker (Picoides americanus dorsalis) 3 



With such a small number of stomachs it is hardly worth while to dis- 

 cuss the food of each species. The Three- toed Woodpeckers {Picoides), 

 however, deserve passing notice, since their food contains a larger per- 

 centage of wood-boring larvae than any other woodpecker examined. 

 As the food of the two species is practically the same they may be con- 

 sidered together. The contents of the 10 stomachs consists of: animal 

 matter, 83 percent; vegetable matter, 17 percent. It is a question 

 whether this should not all be considered as animal, for the vegetable 

 portion consisted almost entirely of rotten wood and similar rubbish, 

 probably taken accidentally, and is not in any proper sense food, the 

 exception being in one case where a little cambium had been eaten by 

 one individual of the Arctic Three- toed Woodpecker {Picoides arcticus) 

 and a few skins of some small fruit by one Alpine Three-toed Wood- 

 pecker (P. americanus dorsalis). The animal food consisted of 63 per 

 cent of wood-boring Coleopterous larvse (beetles), 11 percent of Lepi- 

 dopterous larvae (caterpillars), probably also wood-borers, and 9 per 

 cent of adult beetles, ants, and other Hymenopterous insects. 

 18269— No. 7- 3 



