FAMILY I'lClDJE. WOODPECKERS. 



191 



FAMILY PICID^E. 



Woodpeckers. 



Tail feathers, stiff and pointed ; bill, strong and sharp. Woodpeckers 

 are commonly seen climbing about on trunks of trees. 



Group 1. Wing, less than 4.25 inches long. 



Hack, black, streaked with white ; crown, 

 with red nuchal patch (male) ; without 

 red nuchal patch (female) ; tail feath- 

 ers, stiff and pointed; toes, four, 

 two in front, two behind. 



Downy Woodpecker. 

 Dryobatcs pubescens. 

 See No. 326. 



Group 2. Wing, 4.25 to 5.50 inches long. 



Section 1. The following species have three toes; no trace 

 of red on the crown or nape. 



Toes, three: crown, yellow; back, black, without white (male). 



Arctic three-toed Woodpecker. 



Picoides arcticus. 



See No. 328. 



