APPENDIX. 



FOR the use of beginners who do not collect and have not access to 

 collections of skins, and who may consequently find the technical keys 

 difficult, the following color key has heen made to the more conspicuous 

 birds one meets in the field. Its use by any one who has skins to consult 

 is earnestly deprecated, as it is much better to work a little harder and 

 learn more to begin at the beginning, with ' Keys to Orders.' and follow 

 through to the species, so learning something of the classification of birds, 

 something of their fundamental relations, rather than to find their mere 

 names arbitrarily by the use of purely superficial characters. 



FIELD COLOR KEY TO GENERA OF SOME OF THE 

 COMMON PASSERINE BIRDS. 



(All birds preceding the Order Passeres are omitted, including all the 

 water birds, grouse, quail, turkeys, doves, hawks, owls, cuckoos, kingfish- 

 ers, woodpeckers, goatsuckers, swifts, and hummingbirds.) 



ADULT MALES IN BREEDING PLUMAGE. 



BIRDS WITH PLUMAGE PARTLY OR WHOLLY 



I. BLACK. IV. BLUE. 



II. YELLOW. V. GREEN. 



III. RED. VI. BROWN OR GRAY. 



I. BIRDS WITH BLACK IN PLUMAGE. 



1. Phimage mainly or wholly black. 



2. AVholly black (with more or less gloss). 



3. Length about 16-20 . CROWS AND RAVENS ; see Corviis. p. 279. 

 3'. Length about 8.20-13.50. 



4. Tail even, not folded laterally. 



BREWER AND RUSTY BLACKBIRDS; see Scolecophagus, p. 299. 

 4'. Tail graduated, folded laterally. 



GRACKLES; see Quiscalus. p. 301. 

 2'. Mainly black. 



3. Under parts largely white. 



