342 OHIO EXPERIMENT STATION. 



4. Sterna forsteri NUTT. 



Forster's Tern. 



A transient visitor ; of more or less frequent, though irregular, occurrence in 

 the interior of the State. 



5. Sterna hirundo LINN. 



Common Tern. 



Common as a transient; apparently not a regular summer resident in the 

 State, except on the Lake shore. 



6. Hydrochelidon nigra surinamensis (GMEL.). 



Black Tern. 



Wheaton records this species as a common summer resident in northern Ohio, 

 and as a common transient elsewhere in the State. 



ORDER STEGANOPODES. 

 FAMILY PHALACROCORACID/E. 



7. Phalacrocorax dilophus (SWAINS.). 



Double-crested Cormorant. 



A tolerably common transient in Ohio. 



ORDER ANSERES. 



FAMILY ANATID/E. 



8. Anas strepera LINN. 



Gadwall. 



A tolerably common transient visitor ; probably also a summer resident in at least 

 portions of the State. 



9. Aythya marila nearctica STEJN. 



American Scaup Duck. 



Transient visitor in Ohio ; apparently not abundant. 



