146 
until it froze over, and then followed 
the tame Mallards down to Leverett 
Pond, where it remained until the spring. 
To my knowledge, this is the first Bald- 
pate ever seen on these ponds. Last fall, 
three males and one female Baldpate, a 
male Canvasback, a male Ring-neck 
Duck, and a female Redhead, appeared 
Bird - Lore 
sides the hot water returning from the 
exhausts of some of the engines, there is 
also a constant stream of heated water 
running into the lake from the water- 
jackets of the mine compressors. This 
has a decided influence on the general 
temperature of the lake water and, as 
a consequence, 
the ice leaves the lake 
MALE BALDPATE 
Photographed by W. C. Levey 
on Jamaica, and afterward spent the win- 
ter on Leverett Pond. 
Associating as they did with the tame 
Ducks, they soon became very tame 
themselves, and would come in and take 
food thrown to them. Thus I was able 
to get a number of pictures of them.— 
W. CwHarteswortH LEvEy, Brookline, 
Mass. 
Early Appearance of Gulls on Cobalt 
Lake, Ontario, Canada 
Cobalt Lake is a small body of water 
one mile long and a quarter-mile wide, 
on which is located the town of Cobalt, 
on the T.& N. O., or Ontario Government 
Railway. A number of silver mines of the 
district adjacent to the lake use the water 
of the lake for their steam-plants. Be- 
earlier than formerly, and sometimes as 
much as two weeks earlier than any of the 
surrounding lakes. This year the lake 
opened on March 31, and within twenty- 
four hours two Herring Gulls were seen 
floating in the lake, or hovering gracefully 
above its surface in search of food. It is 
remarkable how soon these birds were 
able to find the open water, when one 
remembers that all the other lakes for 
hundreds of miles around were still 
covered with solid ice—ArtHuR A. COLE. 
Great-Crests Nesting in a Box 
A cherry-tree, twenty-five feet from 
our kitchen window, has three boxes in it. 
One has an opening only just large enough 
to admit a Wren; the other two will 
