FIELD COLOR KEY xxxi 



8. Throat and sides of breast black ; back 

 uniform, or with black markings in mid- 

 dle ; small white spot on wing, which also 

 identifies the dull, buffy olive female. 



p. 312. BLACK-THROATED BLUE WARBLER. 



8'. Throat and breast yellow, dark band on breast; 

 back with yellowish patch ; two white wing bars. 



p. 317. PARULA WARBLER. 



B. RED CONSPICUOUS IN PLUMAGE. 



1. Body mainly brownish. 



Cap, rump, and under parts pinkish red. 



Seen in flocks in winter .... p. 236. REDPOLL. 



V. Body not mainly brownish. 

 2. GENERAL COLOR GREEN OR RED. 

 3. Body mainly green or greenish. 



4. Scarlet crown patch. Migrant. 



p. 354. RUBY-CROWNED KINGLET. 



4'. No crown patch ; throat glancing ruby- 

 red. 



p. 1. RUBY-THROATED HUMMINGBIRD. 



3'. Body mainly red. 



5. Bill crossed. Winter visitors that come in 

 flocks with yellowish green females. Gen- 

 erally seen on coniferous trees, p. 234. CROSSBILLS. 



5'. Bill not crossed. 

 6. Wings and tail red. 

 7. Head with high crest ; bill thick and 

 red ; black ring around base of bill. 

 Female brownish ; wings and tail 

 dull red p. 65. CARDINAL. 



