PLATE IV 



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



2. BACHMAN'S WARBLER, ADULT FEM/LE. 4. WORM-EATING WARBLER, ADULT. 



5. SWAINSON'S WARBLER, ADULT. 

 (ONE-HALF NATURAL SIZE.) 



