  More local and less abundant than the preceding species, from which it may always be distinguished by its white rump and shorter tail, the House-Martin is nevertheless sufficiently common to be familiar to every one. In habits, except for its method of nest-building, it closely resembles the Swallow. It arrives about a week later, and stragglers may sometimes be seen even as late as November, long after the bulk of their comrades have departed. These stragglers are either family parties that have delayed their departure till the young were ready to fly, or more often inhabitants of the far north passing through on their long journey to the tropics. Nest-building is not commenced till the middle of May, and by this time many of last year’s nests, which they would fain repair, are tenanted by that abominable pest—the Sparrow. The nest is built entirely of mud, plastered bit by bit against the side of some house which has overhanging eaves. No straw is used to bind it together, but it is gradually built up to join the eaves till only a small hole is left as a doorway. The lining is composed of fine grass and many feathers, and the eggs, which rarely exceed four in number, are pure white. At least two broods are reared in the season, and then as the weather gets colder they gradually collect near rivers, where their food, in the shape of flies and gnats, is more abundant, till finally, after assembling like the Swallows in large flocks, they suddenly take their departure. The whole of the upper parts, except the rump, which is white, are glossy blue-black; the under parts, including the feathers on the feet, white. The tail is very slightly forked. The sexes are alike in plumage. The young resemble their parents, but lack the gloss and are consequently brownish. They may also be recognised by having white tips to the inner secondaries. Length 5·3 in.; wing 4·25 in. SAND-MARTIN |
|
