68 BIRDS. 



10. GEOTHLYPIS, Cabanis. GROUND WARBLERS. 



1. G. trichas, (L.) Cab. MARYLAND YELLOW THROAT. 

 BLACK- MASKED GROUND WARBLER. Olive green; fore- 

 head and broad mask extending down sides of head and 

 neck jet black, bordered behind with clear ash; under 

 parts yellow, clear on throat and breast; $ obscurely 

 marked, without black mask and with less yellow; L. 4; 

 W. 2i; T. 2. U. S., abundant in thickets; a pretty 

 bird with a lively song. 



$. G. Philadelphia, (Wils.) Bd. MOURNING WARBLER. 

 Bright olive, clear yellow below; head ashy; throat and 

 breast black, the feathers usually ashy - skirted (as 

 though the bird wore crape, hence " Mourning Warb- 

 ler"); $ and $ not in full plumage almost exactly like 

 O. agiliS) but the tail as long as wings; L. 5^; W. 2i; 

 T. 2-j. E. U. S., rather rare, in dense thickets. 



//. ICTERIA, Vieillot. YELLOW -BREASTED CHATS. 



1. I. virens, (L.) Bd. YELLOW - BREASTED CHAT. 

 Olive -green; throat and breast bright yellow; belly 

 abruptly white; lores black, a white superciliary line; 

 wings and tail plain; tarsus almost booted; L. 7^; W. 

 3i; T. 3i- U. S., southerly; N. to Mass, and Wis. (Cope- 

 land.) A loud, quaint songster, often placed with the 

 VireoS) but having little affinity with any of our groups. 



12. MYIODIOCTES, Audubon. FLY-CATCHING WARE- 



LERS. 



1. M. mitratus, (Gin.) Bon. HOODED FLY-CATCHING 

 WARBLER. YELLOW- MASKED WARBLER. Bright yellow- 

 olive, crown and neck all around jet black, enclosing a 

 broad golden mask; under parts from the breast bright 

 yellow ; tail with white blotches ; $ olive instead of 



