326 BIRDS OF THE ROCKIES 



402. Yellow-bellied sapsucker. SPHYRAPICUS VARIUS. 

 Rare migrant; eastern form, scarcely reaching the base 

 of the Rockies. 



402a. Red-naped sapsucker. SPHYRAPICUS VARIUS NU- 

 CHALIS. Common summer resident; breeds from plains 

 to 1 2,000 feet, but partial to the mountains. Author saw 

 one at Green Lake. 



404. Williamson's sapsucker. SPHYRAPICUS THYROI- 

 DEUS. Common summer resident ; breeds from 5,000 feet 

 to upper limits of the pines ; range higher in the southern 

 part of the State than in the northern. 



405a. Northern pileated -woodpecker. CEOPHIXEUS 

 PILEATUS ABIETICOLA. Resident ; very rare ; only probably 

 identified. 



406. Red-headed woodpecker. MELANERPES ERYTHRO- 

 CEPHALUS. Common summer resident ; breeds from plains 

 to 1 0,000 feet ; late spring arrival ; same form in the East 

 and West. 



408. Lewis's woodpecker. MELANERPES TORQUATUS. 

 Common resident; characteristic bird of the foothills; 

 sometimes seen as high as 10,000 feet in southern Colo- 

 rado ; probably does not breed above 9*000 feet. 



409- Redbellied woodpecker. MELANERPES CAROLI- 

 NUS. Summer visitor ; rare, if not accidental ; eastern and 

 southern species, not occurring regularly west of central 

 Kansas. 



412a. Northern flicker. COLAPTES AURATUS LUTEUS. 

 Rare migrant ; range extends only to foothills ; no record 

 of its breeding. 



413. Red-shafted flicker. COLAPTES CAFER. Abundant 

 summer resident ; breeds from plains to 1 2,000 feet ; 



