LONGIPENNES. 33 
20. (74.) STERNA ANTILLARUM (Less.). 284. 
Least Tern. 
Synonyms: Sterna minuta, S. frenata, S. superciliaris, Sternula 
antillarum, Sterna superciliaris antillarum. 
Audubon, Orn. Biog., IV, 1838, 175. 
The records for this tern are few but well scattered over 
the state. It appears to be a rare migrant everywhere. I 
have never seen it at the lake shore. Its routes of migra- 
tion may be largely confined to the western half of the state. 
21. (77.) HypRocHELIDON NIGRA SURINAMENSIS (Gmel.). 
285. 
; Black Tern. 
Synonyms: MHydrochelidon lariformis surinamensis, H. larifor- 
mis, H. plumbea, H. fissipes, Sterna nigra, S. surinamen- 
sis. 
Short-tailed Tern. 
Audubon, Orn. Biog., III, 1835, 535. 
The Black Tern is nowhere as common as the Common 
Tern, but it is not at all rare as a summer resident in the 
vicinity of Sandusky and Toledo. I have been unable to 
find it farther east as a summer resident. While the Com- 
mon Terns breed upon the islands well up from the water 
the Black Terns choose the marshes, building a nest on the 
rotten floating vegetation in the swamps where there is no 
danger from waves. 
The spring migrations occur during the second week in 
May at Oberlin, but probably a weel earlier in the region 
of Sandusky. I have no records for the departure south- 
ward. We found them on the Ohio river late in August. 
Orper STEGANOPODES. Totipalmate Swimmers. 
Family PHatacrocoracip#. Cormorants. 
One member of this family passes across Ohio, and 
nested in former years. Cormorants are great fish eat- 
ers, and probably eat little if anything else. The Chinese 
train them to fish for them. 
