^ 



CHART ILLUSTRATING EXHIBIT OF MARSH BIRDS NEAR CHICAGO 



1, 2. Red-wing blackbird (Agelaius phoeniceus) 



3, 4, 5. Yellow-headed blackbird (Xanthocephalus xan- 



thocephalus) 

 6, 7. Black tern (Chlidonias nigra) 

 8. Bank swallow (Riparia riparia) 



9. Florida gallinule {Gallinula chloropus) 



10. Virginia rail (Rallus limicola) 



11. Sora rail (Porzana Carolina) 



12. Coot {Fulica americana) 



13. Least bittern (Ixobrychus exilis) 



20 1 



