48 



Yellow-Bellied Sapsucker, Sphyrapicus varius.— This bird is a rather com- 

 mon summer resident. It lives chiefly on the cambium and sap of trees, drilling 

 holes through the bark and drinking the sap. It does serious damage to forest 

 trees. This species is doubtless responsible for the injury to trees that is some- 

 times ascribed to other woodpeckers. It may be recognized by its yellowish belly 

 and the black patch on the breast. The crown is deep scarlet. 







\^- 



Yelfow-bellied woodpecker. 



Red-Headed Woodpecker, Melanerpes erythrocephalus. — The conspicuous 

 red head will distinguish this woodpecker. It is rather rare and not very valuable 

 as a destroyer of forest pests, as it feeds on grain and berries during part of the year. 



Pileated Woodpecker, Coephloeus pileatus. — This beautiful and conspicuous 

 bird is a resident of deep forests. All its work helps to preserve the trees. It is 

 rather rare and, unfortunately, is often shot on account of its conspicuous size 

 and plumage. 



