Larus delawarensis. 
Lake Umbagog. 
1883, 
October 26. 
After breakfast I discovered a flock of strange C-ulls on 
the river beyond the first pond. I took them to he Ring-bills. 
They alighted in a thick cluster, sometimes on a mudbank, some¬ 
times on the dead stubs. One was dark, the rest snow white. We 
afterwards tried to shoot one but found them just a little too shy. 
I got within good range of one behind the river bank, but hearing 
a Duck quack, did not fire and finally the Gull saw me and flew. 
