GEN. 1-3 OF KEY. 



1. TUBDUS MIGBATOBIUS L. 



Robin. 



la. TUBDUS MIGBATOBIUS L., 

 var. CONFINIS (Bd.) Cs. 

 St. JLuca Robin. 



2. TUBDUS N^IVIUS GM. 



Varied Thrush. 



3. TUBDUS MUSTELINUS GM. 



Wood Thrush. 



4. TUBDUS PALLASI CAB. 



Hermit Thrush. 



4a. TUBDUS PALLASI CAB., 

 var. AUDUBONH (Bd.) Cs. 

 Audubon's Thrush. 



4b. TUBDUS PALLASI CAB., 

 var. NANUS (Aud.) Cs. 

 Dwarf Tnmsh. 



5. TUBDUS SWAINSONI CAB. 



Olive-backed Tnrusn. 



5a. TUBDUS SWAINSONI CAB., 

 var. ALICI^E (Bd.) Cs. 

 Alice's Thrusn. 



5b. TUBDUS SWAINSONI CAB., 

 var. USTULATUS (Nutt.) Cs. 

 Oregron Tliruwli. 



6. TUBDUS PUSCESCENS STEPH. 



Wilson's Tlirush. Veery. 



7. OBEOSCOPTES MONTANUS (TOWNS.) BD. 



Mountain Mocking-bird. 



8. MIMUS POLYGLOTTUS (L.) BOIE. 



Mocking-bird. 



