198 UNIVERSITY OF COLORADO STUDIES 



Suborder Alcyones, Kingfishers 



Family ALCEDINIDAE, The Kingfishers 

 Ceryle alcyon alcyon, Belted Kingfisher (390) 



Permanent resident; infrequent in summer on the Plains and more common 

 in the mountains, reaching the lakes in the spruce forests. It is infrequent in 

 winter on the Plains. There are no nesting dates available, though Gale took one 

 on May 15 "within a few days of laying." 



Order PICI, Woodpeckers, etc. 



Family PICIDAE, The Woodpeckers 

 Dryobates villosus monticola, Rocky Mountain Hairy Woodpecker (393e) 



Permanent resident; common in summer in the Yellow Pine and Mountain 

 zones. Becomes more numerous in the lower Yellow Pine and reaches the adjoin- 

 ing edge of the Plains in winter. Gale took many sets of eggs between May 8 

 and June 13 at elevations of 8,200-10,000 feet. 

 Dryobates pubescens homorus, Batchelder's Woodpecker (3946) 



Permanent resident; infrequent in the Yellow Pine and Mountain zones (little 

 data on its upper limit). It is found on the Plains in the winter. The Rocky 

 Mountain form of the Downy is much less common than the Rocky Mountain 

 Hairy Woodpecker in the county. Gale found nests with eggs from June 11 to 

 June 30 (5 records). 

 Picoides americanus dorsalis, Alpine Three-toed Woodpecker (4016) 



Permanent resident; infrequent; probably confined to the vicinity of the 

 spruce forests in summer. One was seen by the writer on two occasions in the 

 winter of 1911-12, at 5,800 feet (lower edge of the Yellow Pine). 

 Sphyrapieus varius nuchalis, Red-naped Sapsucker (402a) 



Summer resident; common, occurs chiefly from the middle of the Yellow 

 Pine to the middle of the Mountain zone — the region where aspen is common. 

 Arrives, April 26-28 (2 records) ; leaves, September 4 (1 record). Gale took many 

 sets of eggs between May 29 and July 1 (55 sets in the University collection), at 

 7,500 to 9,200 feet. They were located almost without exception in live aspens. 



Sphyrapieus thyroideus, Williamson's Sapsucker (404) 



Summer resident; common in the Yellow Pine and lower part of the Mountain 

 zone. Arrives, April 5-10 (2 records); two dates for departure are September 17 

 and November 6. Gale's many sets of eggs (there are 57 in the University col- 

 lection) were taken between May 24 and June 16 from 7,500 to 9,500 feet. The 

 nesting sites were in decaying aspen or conifer stubs. 



