GEN. 13-17 OF KEY. 11 



31b. PAETJS ATRICAPILLUS L., 

 var. CAKOLrNKNSis (Aud.) Cs. 

 Carolina Cliickadee. 



31c. PAEUS ATRICAPILLUS L., 

 var. occiDBNTAiJs (Bd.) Cs. 

 ^fV^estern Cbickadee. 



32. PARUS MOWTANIIS Game. 



SEoiiiitaIn CliicIiLadee. 



33. PARUS HUDSONICUS Forstek. 



Kudsonian Cliickadee. 



34. PARITS RUPESCENS Towns. 

 Cbestnut-backed ClucUadee. 



35. PSALTRIPARUS MINIMUS (Towns.) Bp. 



Ireast Titmouse. 



36. PSALTRIPARUS PLUMBEUS Bd. 



Plumbeous Titmouse. 



37. AURIPARUS PLAVICEPS (Sund.)Bd. 



Telloir-Iieaded Titmouse. 



38. SITTA CAROLINElf SIS Gm. 

 'frbite-bellied IVutbatcb. 



38a. SITTA CAROLIlTElfSIS Gm., 

 var. ACULBATA (.Cass.) AU. 

 Slender-billed IVutbatcb. 



39. SITTA CAWABEITSIS L. 

 Red-bellied IWutbatcb. 



40. SITTA PUSILLA Lath. 

 Brovmn-beaded BTutbatcb. 



41? SITTA PYGMiEA ViG. 

 Pygrmy ]Vutbatcb. 



42. CBRTHIA PAMILIARIS L. 

 Broivn Creeper. 



