xliv 



FIELD COLOR KEY 



5'. Under parts brown ; black line on side 

 of head. Winter visitor ; nests mainly 

 in mountains, or north of United States. 



p. 76. RED-BREASTED NUTHATCH. 

 4'. Top of head bluish ; not seen on tree trunks. 

 Tail black ; outer feathers white. Flits 

 about actively, catching insects. 



p. 357. BLUE-GRAY GNATCATCHER. 

 3'. Back gray or slate. 

 6. Crown gray like back ; black bar on 

 side of face ; sides of tail white. 

 Perches in exposed positions. 



p. 300. SHRIKES. 



6'. Crown black ; no black on face ; no 

 white on tail ; under parts slate ; 

 under tail patch reddish brown. Fre- 

 quents thickets. 



p. 6. 

 [.' PLUMAGE NOT DISTINCTLY MARKED 



WITH BLACK. 

 7. Outer tail feathers white ; head not 



crested. 



8. Back and breast slate gray ; belly 

 abruptly white. Common, familiar 

 Snowbird. 



p. 221. 



CATBIRD. 



JUNCO. 



8'. Back lighter gray ; breast and belly 

 white ; size large. A well-known 

 bird of the southern states. 



p. 63. MOCKINGBIRD. 



7'. Outer tail feathers not white ; head with 

 high crest ; size small. Song, pe-to, pe-to,' 

 pe-to. 



p. 151. TUFTED TITMOUSE. 



