228 Trans. Acad. Sci. of St. Louis. 
remained to breed in small numbers in favorable localities in the 
Missouri bottoms. During the summer of 1915 a pair were seen 
throughout the entire breeding season at the mouth of Big Blue, 
where they no doubt had a nest. 
This tern seems to be slightly on the increase; more individ- 
uals have been seen during the last four years than for thirteen 
years prior to that time. 
HYDROCHELIDON NIGRA SURINAMENSIS (Gmelin). Black Tern. 
Abundant migrant and not uncommon summer resident. 
The first impatient males begin to arrive about April 26th, 
followed in increasing numbers all through May by the bulk of 
the flight and until mid-June by the stragglers. A flock of be- 
tween fifty and a hundred birds have been seen migrating as late 
as June 11th. 
These terns follow the Missouri River in flocks of several hun- 
dred individuals and resort to favorite feeding and resting places 
where they may be observed during every migration. The Big 
Eddy just below the mouth of Blue is one of these. Here the 
feeding flocks may be easily approached in a launch and the 
many plunfage variations observed at close range. 
This species has been seen about the Swope Park lakes, Penn » 
Valley lake, Country Club pond and other small bodies of water 
in and around the city. They are observed during the entire 
summer at most of the duck-hunting resorts in this vicinity, an 
are very possibly breeding in favorable localities. 
Several were seen hawking for insects over an athletic field 
in the Country Club region in company with Nighthawks on 
May 17, 1917. 
Order STEGANOPODES. Totipalmate Swimmers. 
Family ANHINGIDAE. Darters. 
ANHINGA ANHINGA (Linn) .Water-Turkey. 
Formerly an occasional summer visitant. 
A small flock of these curious Southern birds were observed 
by Bush on the Missouri River near old Wayne City (now Ce 
ment City), in 1882. 
A specimen was taken by Bryant on the Missouri River at 
Parkville in 1898. This bird will possibly not be met with here 
again; it has been steadily driven south by the encroachments 
