Urinator imber . 
North Truro, Mass. 
1391. As we were strolling near Eel Pond in the late afternoon 
May 31 . we heard in the distance hut evidently approaching rapidly, 
a loud, continuous chug-chup;-chufi|a lmost exactly like the puff¬ 
ing of a steam-tug and presently a Loon came hurtling overhead 
and was almost immediately lost to sight againg ir) the fog. 
The sound was evidently made by his wings but I cannot remem¬ 
ber ever hearing anything like it from a Loon or indeed from 
any bird before. It seemed to us fully as loud as the puffing 
of a tug a few hundred yards off. The bird was in full breed¬ 
ing plumage. 
