Chestnut-backed Chickadee 



Parus rufescens 



uuu- 

 wuu- 



wU- 



Sittidae 



Red-breasted Nuthatch 



Sitta canadensis 



UWWw WW-- 



UUWW-WWU---U 

 WWUUwWU-ww- 



-uwwwuwu-u 



WU 



White-breasted Nuthatch 



Sitta carolinensis 



VJUUw — W-W-- 



WWW--WWW---W 



UWWW-W---W- 



--WWwWWW-- 



-w 



Pygmy Nuthatch 



Sitta pygmaea 



72 



