BARN SWALLOW. 141 
tree as to stand on one another for lack of room; 
then they pair, and make their nests in sand- 
banks, digging about fifteen or twenty inches in; 
line the hole with grass and the fronds of the 
pine-tree. They leave again in September. 
Lay four or five eggs. 
RovuGH-wWINGED SwaLLow (Cotyle serripennis, 
Bonap.).—This swallow arrives about the same 
time as the sand-martin, and has much the 
same habits and distribution, but differs in 
its choice of nesting-place. Like the woodpecker. 
this bird either makes a hole in a dead _ pine- 
tree, or, taking possession of one already made 
therein, builds a nest of feathers and deer-hairs, 
lays four or five eggs, and fetches out its brood in 
July. Theeggs are most difficult to obtain, the 
trees selected for nesting being usually too rotten 
to climb. 
Barn Swattows (Hirundo horreorum, Bar- 
ton) are common on Vancouver Island, and on 
both sides of the Cascade Mountains. They 
arrive at Colville in May and June, and build 
either under a ledge of rock, or in an old out- 
building, if such can be found. 
Whilst at our depét at Syniakwateen (vide 
illustration in Volume I.) a solitary pair of 
barn-swallows paid us a visit. A small shanty 
