WHITE-FRONTED, OR CLIFF SWALLOW. 293 
that of the farmers, I made up my mini! to institute a 
strict investigation of the matter. The following is the 
result : — 
“ When the chuck-wilPs-widow, either male or female, 
(for each sits alternately,) has discovered that the eggs 
have been touched, it ruffles its feathers, and appears 
extremely dejected for a minute or two, after which ‘it 
emits a low murmuring cry, scarcely audible to me, as 
I lay concealed at a distance of not more than eighteen 
or twenty yards. At this time I have seen the other 
parent reach the spot, flying so low over the ground 
that I thought its little feet must have touched it, as it 
skimmed along, and after a few low notes and some 
gesticulations, all indicative of great distress, take an 
egg in its large mouth, the other bird doing the same, 
when they would fly off together, skimming closely over 
the ground, until they disappeared among the branches 
and trees. But to what distance they remove their 
eggs, I have never been able to ascertain ; nor have I 
ever had an opportunity of witnessing the removal of 
the young. Should a person, coming upon the nest 
when the bird is sitting, refrain from touching the 
eggs, the bird returns to them, and sits as before. 
This fact I have also ascertained by observation.” 
17. HI R UNDO LUNIFRONS. 
WHITE-FRONTED, OR CLIFF SWALLOW. 
“ Its clustered nests are of frequent occurrence, on the 
faces of the rooky cliffs of the barren grounds, and they 
are not uncommon throughout the whole course of 
the Slave and Mackenzie Rivers. On the 25th of June, 
in the year 1825, a number of them made their first 
appearance at Fort Chepewyan, and built their nests 
under the eaves of the dwelling-house, which are about 
six feet above a balcony, that extends the whole length 
of the building, and is a frequented promenade. They 
had thus to graze the heads of the passengers, on 
entering their nests, and were moreover exposed to the 
curiosity and depredations of the children, to whom 
