Throughout the summer the Manx Shearwater is nocturnal, and at the approach of darkness becomes very garrulous. Its note may be expressed as _kitty-coo-roo_, uttered two or three times in succession, and then a pause. So far as I could determine, this note is never uttered by the bird at sea, only when flying about its breeding station, or in or near its burrow, and is only heard at night. At St. Kilda the island of Soay is the grand breeding place of this Shearwater. The St. Kildans visit this island at times during the breeding season, going at night, knocking down the birds as they flutter about, and dragging others from their nests. Four hundred Shearwaters are sometimes slain thus in a single night. The Manx Shearwater is a somewhat late breeder, its eggs being laid towards the end of May, or during the first half of June. There are no known breeding places of this bird along the eastern coast line of Scotland and England; nor have any yet been discovered on the south coast of England, although I am positive the species nests in the South Hams of Devon. Its breeding area, so far as it is known, is almost precisely the same as that of the Stormy Petrel. Its favourite nesting-places are islands with a good ocean aspect, covered with turf and soft, loamy soil. Although gregarious during this period, many scattered pairs breed here and there along the coast. The bird probably pairs for life, returning year by year to a favourite nesting-place. It usually excavates a long and often winding burrow, making a slight nest of dry grass at the end, on which is laid a single white egg. Both birds assist in making this burrow, which often runs under some mass of rocks, and many holes are begun and deserted for no apparent reason, just as we find to be the case with the Sand Martin and other hole-boring species. At the entrance of all of the holes that are occupied there is a considerable heap of droppings. Few, if any, Shearwaters are astir even at a populous breeding-station during the day; all keep closely to their burrows, remaining stolidly upon their nest until dragged forth, struggling, into the light. Many burrows are made close together, and in some cases one main entrance will lead to several chambers, each containing a nest. _Littoral Land Birds_ [Illustration: THE CHOUGH. Chapter vii.] CHAPTER VII. LITTORAL LAND BIRDS. _Littoral Land Birds—White-tailed Eagle—Peregrine Falcon—Raven—Jackdaw—Hooded Crow—Chough—Rock Pipit—Martins—Rock Dove—Stock Dove—Heron—Various other species._