PLATE IV 



1. BACHMAN'S WARBLER, ADULT MALE. 3. BACHMAN'S WARBLER, YOUNG FEMALE 



2. BACHMAN'S WARBLER, ADULT FEMALE. 4. WORM-EATING WARBLER, ADULT. 



5- SWAINSON'S WARBLER, ADULT. 

 (One-half natural size.) 



