SUPPLEMENT TO BIRDS OF ESSEX COUNTY 23 



much of the southern shores and grows to the height of a man's head. The varied 

 tints of blue in the shallow waters of the pond set off by fleets of white gulls 

 and terns, the yellow and green of the flats clothed with a velvety growth of spike- 

 rush, the glowing purple of the loosestrife, and the patches of white sand beaches 

 and clay banks, make a picture of singular beauty in its frame of barren 

 moor-lands. 



Originally maintained by the late Mr. A. B. Clark as a private ducking-pond, 

 provided with underground blinds on the hillside and with numerous live Black 

 Ducks and Canada Goose decoys, it has been, since his death, preserved nearly 

 inviolate and frequented by birds and ornithologists. Binoculars have largely 

 taken the place of guns. 



I am indebted to a number of friends for records of birds observed at this 

 pond, particularly to Mrs. Edmund Bridge who has sent me her lists for the last 

 fifteen years, and from these, together with my own records, I have made the 

 following list of water-birds that have been observed on the waters of the pond 

 or on its muddy banks. 



Of the gulls and tems the following have been observed: 



Glaucous Gull Caspian Tern 



Great Black-backed Gull Common Tern 



Herring Gull Arctic Tern •. 



Ring-billed Gull Roseate Tern ^ 



Laughing Gull Least Tern 



Bonaparte's Gull Black Tern 



Among the ducks the following have been observed : 



Mallard Pintail 



Black Duck Greater Scaup Duck 



Green-winged Teal Lesser Scaup Duck 



Blue-winged Teal Ring-necked Duck 



Shoveller Golden-eye 



Of the herons the following: 



Bittern Green Heron 



Great Blue Heron Black-crowned Night Heron 



Shore-birds in great numbers and large variety frequent the secure shores 

 of the pond. These birds were protected even in Mr. Clark's day. The follow- 

 ing is the list : 



