Like most short-winged, heavy-bodied birds, they fly straight to their point, rushing violently through the air with rapidly-beating wings. It is amusing to watch a bird flying in from the sea, and attempting to alight on a ledge of rock already crowded; one or two birds at the spot the new-comer attempts to drop on threaten to strike with their beaks. This demonstration prevents him from coming down among them; and, being incapable of gliding off to one side to drop on to some other spot, or of suspending himself in the air for a few moments, he is compelled to drop down without touching the ledge, sweep round, and go straight out to sea again, and after flying a distance of three or four hundred yards, or farther, to circle round and come back to the ledge a second time. The frustrated bird is often seen to fly right away out of sight. The single egg of the guillemot is deposited on the naked rock, without any nest, often dangerously near the edge. The sitting-birds are very careful when leaving the rock to push the eggs from under them; but when suddenly startled, as by the report of a gun fired from a ship or boat for the amusement of cockney excursionists, the eggs may be thrown off the ledge, and in some instances have been seen to fall in a shower down the cliff-side. The guillemot lays a handsome pear-shaped egg, very large for the bird. No other bird lays eggs so various in colour; so greatly do they vary that two eggs cannot be found quite alike, even among hundreds. The ground-colour in different specimens is white, cream, stone-colour, pale blue, reddish, and many shades of green, from a strong, bright green to olive-green. The egg is spotted and blotched with brown, black, and deep red, and grey. The guillemot when incubating does not lie on its egg like most birds, but stands with the egg between its legs, which are placed very far back, as in all auks, divers, and grebes. It is a pretty and amusing sight to watch the guillemot, when returning to her egg after a short absence, walk on to it, and adjust and readjust it a score of times, using her beak and chin for the purpose, before she is satisfied that it is effectually covered. Incubation lasts a month, and only one young bird is reared in the season; if the first egg is taken she will lay a second, and sometimes a third. In strange contrast to the guttural croaking and barking cries of the adults is the language of the young bird. Its hunger-note is a far-reaching, sandpiper-like cry, clear, tremulous, and musical. In imitation of this sound the young bird is called a _willock_; and it is supposed that the name of guillemot, which is of French origin, is also derived from the young bird’s cry. Black Guillemot. Uria grylle. Plumage sooty black, except a patch on the wing-coverts, which is white with a black bar; bill black; legs vermilion-red. Length, fourteen inches. * * * * *