The grey lag goose pairs for life, and is gregarious, but is said not to associate with geese of other species. It feeds on grass and young shoots, and in the autumn on grain, and spends nearly the whole day in feeding, and resorts at dark to some open level space to roost, where it is almost impossible to approach within gunshot of the flock, owing to its watchfulness. The grey lag makes a large nest of reeds and grass, lined with moss, and lays six eggs, sometimes a larger number. During incubation the gander keeps guard over his mate, and afterwards assists her in rearing the young. These are led back to the nest every evening by the goose, and sleep under her wing. The male begins to moult a month earlier than the female, and when the time comes he leaves her in sole charge of the young, and withdraws to some hiding-place, or spends the daylight hours on the water, coming to the land in the evening to feed. The goose begins her moult after the young are able to take care of themselves. The grey lag goose does not range so far north as the allied species; it is only in Norway, where the summer is longest, owing to the influence of the Gulf Stream, that it is found nesting north of the arctic circle. Bean-Goose. Anser segetum. The bean-goose differs from the preceding species in its more slender shape and longer bill, which is orange-colour in the middle, black at the base and on the nail; and in its darker colour and the absence of black marks on the breast, and the bluish grey colour on the shoulder of the wing; legs and feet orange-yellow. Length, thirty-four inches. * * * * *