oe : i ‘ch seldom if ever live more than three days after they surprising, to the entire neglect of its own young, which se are hatched, if the usurper be among the family. a A nest, taken from a hole in a pollard willow near the lock at Maidenhead, in Berkshire, on the 24th of e : and shr f the commot April 1859, was cupshaped, somewhat dense, and formed of dried grasses, fine roots, and shreds o on i 1 al aa ‘ , in number; barkless bass matting, warmly lined with short cows’ hair and a little wool. The eggs were four 1 er; e grey, minutely freckled all over with pur lish brown, buat especially at the S ye Pe é in the first week of April, and the first egg was re roof of a boat-house at Formosa, Cuckoo. This nest was rendered 1 it was decorated, and from there their ground-colour light oliv The construction of this nest was commenced Another taken in May 1860, from a beam under t ained four eggs of the Pied Wagtail, and one of a arlet and blue wools, with whicl ed of purple silk, apparently a fragment from larger end. laid about the 15th. near Maidenhead, cont singular in appearance by a quantity of sc being among the materials of which it was composed a shr a lady’s dress. During the pairing-season the male performs a number of grotesque the female with ruffled feathers and outspread wings and tail.: Although the Pied Wagtail is an inhabitant of our island during the whole of the year, I have not failed to notice that it is much more numerous in certain localities at one season than at another, and that, if it be not strictly migratory, it certainly, like other birds, affects a change of situation. Any one who may visit the banks of the Thames during the month of September will find both old and young congregated in thousands, I have myself seen them there and animated motions, and approaches spreading over the margins of the river and roosting on the aits at night. at that season in swarms like the Sand-Martin; and that some more or less extensive migration then takes place I am certain, for a short time afterwards their numbers are greatly diminished. Where they go to, no one can say ; all we know is that the greater number of them disappear, and that but few remain during the winter. At the period alluded to, the old birds have thrown off the black colouring of the throat (the characteristic of summer) and assumed the white one of winter; the early-spring broods have the throat suffused with yellow, and their backs mottled black and grey ; and the later ones are less gaily attired, having the upper surface brown, and the under one grey, with only a trace of the black pectoral band. The sexes are very similar at all seasons, except that the colour of the female is less intense, ber back not so black as that of the male, and in some instances grey, but never of so light a hue as in WW. alba. The Plate represents a male and a female, of the natural size, in their full summer dress, and a young bird in the first autumn of its existence, when the face and throat are usually suffused with yellow.