64 
Capt. Blakiston on the Birds of the 
Hirundo lunifrons. 
The Cliff Swallow is also given in the ‘Fauna Bor.-Am/ and 
by Mr. Boss on the Mackenzie; and I observed it in considerable 
numbers under the eaves of the buildings at Fort Pitt, on tbe 
north branch of the Saskatchawan, in June. While travelling 
over the prairie in the neighbourhood of Bow Biver, our party 
came upon an immense granite-boulder, about 25 feet high, 
standing alone on the plain. This had been taken advantage 
of by the Cliff Swallow, the mud-formed nests of which were 
clustered together in a mass. The steep cliffy banks of some 
parts of the Saskatchawan Biver are also used by this bird for 
nesting-places. 
41. Hirundo bicolor. 
My specimen (‘Ibis/ vol. iv. p. 4) was, I believe, the first re¬ 
corded from the interior, as it is only mentioned as having been 
observed in the c Fauna Bor.-Am/ Since that, however, Mr. 
Boss has observed it on the Mackenzie, as far north as the Arctic 
Circle. In 1858 the White-bellied Swallow was first seen by 
myself at Fort Carlton, on the 23rd of April; but I was told of 
Swallows on the 21st. They were numerous early in May; and 
on the 17th I found a great number of them congregated about a 
small lake or pond entirely surrounded by old woods and willows, 
with its edge margined with long grass. After a time the 
whole congregation alighted on a couple of dead willow-bushes, 
about eight feet from the ground. Approaching within shot, I 
poured among the thickest lot my usual half-charge of small shot 
and powder, which brought a number to the ground. I picked 
up eight; but, on account of the length of the grass, I have no 
doubt I missed finding several. They alighted again in the same 
manner twice, before I quitted the place. I skinned one, and 
measured the whole; they ranged between 5J and 5| inches in 
length, and from 4^ to 5 inches in the wing. I found these 
birds common on the Saskatchawan during the whole summer, 
and at the eastern base of the Bocky Mountains, near the inter¬ 
national boundary, on the 7th of September. 
42. Cotyle, sp. ? 
The specimen and eggs obtained by M.Bourgeau /Ibis/ vol.iv. 
