5C4 KORTII AMERICAN BIRDS. 



.08 (.65). Eggs .65 X -50. JLih. Western and northern 



Alaska (.St. Michael's to Fort Anderson). 



7.^9. P. cinctus alascensis (Puaz.). Alaskan Chickadee. 



<P. Sides of neck ash-graj'; car-coverts paler grayish, fading to while 



on cheeks; tertials without distinct whitish edges; sides dull 



rusty. 



Top of head hair-brown; throat soot}' blackish; length 

 about 5.00-5.75, wing 2.35-2.70 (2.52), tail 2.30-2.80 (2.55), 

 tarsus .62-.70 (.08). Eggs .58 X -50. Hah. Northern North 

 America east of Rockj' Mountains, south to northern por- 

 tions of Michigan, Xew York, New England, etc., north to 

 Davis' Straits and Alaska. 

 (!).>.) 740. P. hudsonicus Forst. Hudsonian Chickadee, 



c*. Back deep rusty chestnut. (Top of head deep sei)ia-bro\vn ; throat 

 darker, more soot}' ; sides of head and neck pure white.) 

 d}. Sides and flanks bright rust}', or rust}^ chestnut, like back ; length 

 about 4.50-5.00, wing 2.35-2.60 (2.47), tail 2.00-2.30 (2.10), tar- 

 sus .60-.70 (.68). liab. Coast district of Oregon, Washington, 

 British Columbia, and southern Alaska. 



741. P, rufescens Tow.ns. Chestnut-backed Chickadee. 



(T: Sides and flanks light grayish, vcr}- slightly or not at all tinged 



with rusty; wing 2.30-2.60 (2.41), tail 2.00-2.20 (2.10), tarsus 



.60-.70 (.65). Eggs .50 X -46. IM>. Coast of California. 



741(T. P. rufescens neglectus Eidgw. Californian Chickadee. 



Genus PSALTRIPARUS Bonaparte. (Page 558, pi. CXXIL, fig. 5.) 



Species. 



Common Char-^cters. — Above plain grayish or brownish (or both), the crown 

 different in color from back (except in P. plumhats) ; beneath plain light graj'ish, 

 graj'ish white, or brownish white. JVcst very bulky, purse-shaped, with the en- 

 trance a small circular opening usually on one side near top, composed of mosses, 

 plant-fibres, lichens, and other soft materials, lined with soft feathers; suspended 

 from low bushes. Eggs 5-9, pui"e white, without markings. 



fl'. Back gray. 



6'. Top of head light brownish, sides of head much paler, 

 c'. Back, etc., brownish gray. 



d'. Darker, the back deep brownish gray, or graj'ish brown, the top 

 of head sooty brown, lower parts light smoky brown, deeper 

 along sides; length about 4.00-4.50, wing 1.95. tail 2.20, tarsus 

 .65 (onl}' one specimen examined). Hah. Northwest coast, 

 from northern California (?) to Washington. 



743. P. minimus (Towns.). Bush-Tit. 



