KEY TO FAMILFES. — LAND HIKDS. 



Part 2. Tip of upper mandible, not notched or hooked. 



Bill, as illustrated ; back, brown ; rump, with 

 concealed white spots; outer tail feathers, shortest; 



tarsus, scutellate. ""^ ^ 



Family TROGLODYTID/C. Wrens. 



See page 312. 



137 



j--^gM- 



Bill, as illustrated; back, gray or bluish gray; iiws- 

 trils, concealed hy tufts of bristly fealliers. 



Family PARID/E. 



Subfamily SITI IN/C. Nuthatches. 



See page 317. 



^'% 





* 



^i 



liiil, as illustrated; throat, black; crown, Idack 

 and no rufous hrown on sides ((,'iiickadee), or forehead, 

 black; sides, with rufous iuowu ( Titmouse). 



Family PARID>E. Chickadees and Titmice. 



See page 318. 



552 



Section 2. First primary, not short, always more than 



half as long as third. 



Part 1. Tip of upper mandible, with small but distinct hook or notcli. 



Bill, flattened and wide at 

 base; nuiticK.iis black brisii<~ at 

 lias<; of bill ; back of tarsus, rounded ; 

 wing, longer than tail. 



rr 



353 



Topofblli. Side of bill. 



Family TYRANNID/E. Flycatchers. 



See p.ig.- JIM). 



