North American Birds Eggs. 



323 



739. Alaskan Chickadee. P(tnis cinrtuit (il(i.sreiisi>f. 



Ranji:e. — Northern Alaska and eastern Siberia. 



This bird, whicli is most like the Iludsonian (Chickadee, nests in the u^ 

 manner and its es.tjs are like those of tlie common Chickadee of the east. 



ual 



740. Hudsonian Chickadee. Panis hudxonirns. 

 Range. — Western half of British America. 



These brown capped Chickadees are very abunihuit thr(»ughout 

 tlie northwest and are even tamer than our United States varieties. 

 They usually make their nests at low elevations in ilead and decaytnl 

 stumps and line the bottom of the cavity, which varies from three to 

 eight inches in depth, with moss and fur. Their eggs, which they 

 lay in May, June or July, are white, specked with reddish brown 

 and cannot with any certainty be distinguished from those of the Black-capped 

 Chickadees, the eggs of all the species showing considerable variations; size 

 .(iO X .45. 



740a. Kowak Chickadee. P. h. stoneyi. 



Range. — Kowak River, northwest Alaska. 



A larger and grayer form of the last species: nesting habits and eggs not dif- 

 fering. ■ ^ ^ 



740b. Columbian Chickadee. P. h. rolumbianiis. 



Range. — Rocky Mountains from northern United States to Alaska. 



Like hudsonicus but with the crown slaty instead of brownish. No difference 

 can be distinguished either in their habits or eggs. 



740c, Canadian Chickadee. P. Ii. littoralis. 



Range. Eastern half of Canada and northern New England and New York. 



These birds were formerly fiudfioninis in company with the western ones, but 

 they are now supposed to be a trifle smaller and with the crown duller: this 

 division does not affect the similarity of their habits and eggs. 



741. Chestnut-backed Chickadee. Paras rufescem^. 

 Range. — Pacific coast from Oregon to Alaska. 

 Range. — This species is similar to the Hudsonian in having a 



brown crown and black throat, but has in addition, a chestnut 

 colored back and sides. They breed locally in Oregc^n. more 

 commonly in Washington and are abundant in I^ritish Columbia, 

 making the nests of animal fur in holes in dead stui)s. Their 

 eggs vary in number from five to eight and are creamy white, 

 dotted with redtlish: size .60 x .45. Data. — Dayton, Oregon, May 28, ISOO. 

 of hair and fur in willow stub, 10 feet up. Collector, Ellis F. Hadley. 



#- 



i Wli 



Nest 



74 1a. California Chickadee. P. r. neglertus. 



Range. — Coast regions of California. 



This variety is not as rufous on the sides as the more northern one. 

 and eggs are the same. 



Its habits 



741b. Barlow Chickadee. P. r. bar Unci. 



Range.— About Monterey Bay, California. 



This variety is said to have no rusty on the fianks. 

 like those of the others. 



Its habits and eggs are 



