1874. 
Aug. 18. 
i: 
Hydrocholidon 
Maino (Lake IJnbagog). 
Three flying about over the Lake near the Outlet. 
Their flight v/as peculiar and distinctly unlike that of 
other Tern, resembling more a Sv/allow’s or a Petrel’s. 
They kept for the most part rather hiph 
in air, frequent¬ 
ly hawking about two or tliroe hundred feet above the wa¬ 
ter, apparently catching insects. At other times tl'iey 
v/oula ily steadily along v/ith heads depressed soeminglv 
searching the surface of the Lake. Occasionally one '' 
would sweep dovm to the '.yater like a Gull, but in no 
instance, during an hour’s observation, did I see any of 
them^acDually touch the surface. They appeared near]v 
Dlacx ana reminded mo of Mighthawks. The only note’ 
heard was a shrill, but feeble j 3 ^ 0 ! two 
ox oh.m when tno survivor hovered over its dead c^yieanios 
after the usual manner of terns. The stomachs of those- 
^-lied were filled entirely with insects chiefly gras-- 
.xoppers with a few eoleoptera and diptera. Both wore^ 
emitted none of that poculi.ar salty 
i.i-_1 chcirac .^orxs1 1 C of ma-rine species. 
I 
