GATALOGUE OF CANADIAN BIRDS. . 59 
This tern is a summer resident in the St. Lawrence valley. In 
the county of Leeds, Ont., I first noticed it near Gananoque lake 
in 1893, about six miles north of the St. Lawrence, where on the 
7th July, I found a nest among the flags, containing three eggs on 
the point of hatching. Each year since, I have found two or three 
nests in the same locality. The birds choose very wet, miry 
places to layin. Two nests were found on old musk-rat houses, 
another on a log of wood in a pool far out in the marsh, others in 
equally swampy places. Three completes the set of eggs, which 
are usually laid between the 7th and 14th June. In the spring of 
1894 these birds were very plentiful; since that time not so much 
so. I noticeda number of them in the Bay of Quinte in July, 
1896, and Dr. C. K. Clarke; of Kingston, tells me that anumber of 
pairs nested at Cataraqui marsh in 1897. (Rev. C. J. Young.) 
This species breeds in all the large marshes that I have visited 
in western Ontario, and nests on the dilapidated musk-rat houses 
and other débris, laying from two to four eggs. (W. Saunders.) 
78. White-winged Black Tern. 
Hydrochelidon leucoptera (MEISN. & SCHINZ.) Bork. 1822. 
Six specimens of this species, or rather what I believed to be 
this species, were seen for hours one morning about the last of 
August, 1881, flying over a lake on the western flank of Porcupine 
mountains in northwestern Manitoba. One of the birds was shot, 
but owing to our difficulties at the time (we were hauling our boats 
over a height of land) it spoiled before it was skinned. 
On June gth, 1896, I again had the good fortune to see a pair of 
these birds, which were evidently mated, but after watching them 
for an hour I could find no nest. They were circling around a 
small marshy pool across the road opposite to the entrance to the 
Experimental Farm at Brandon, Manitoba. I had no gun, and 
when I returned six weeks afteiwards I saw no signs of terns 
around the pool. 
I take the following from my note-book, written at the time: 
‘To-day was again surprised by seeing a pair of black terns with 
the bends of both wings evidently quite white. I watched them 
for a Jong time and found them to be identical with those I saw 
by the pool at Stony mountain on the 4th inst. When the bird 
