length of its wing being four inches. When in its nuptial dress, the plumage of the upper part of

the body is brilliant black shimmering with brown, the under parts being greyish white, clouded with a darker shade; the throat and a place in the front of the eye are black; the head, sides of the neck, and throat, chestnut-brown; the eye is reddish brown; the bridles yellowish green; the beak yellow at its base and black towards its apex; the external aspect of the foot is blackish, internally it is of a clear horn-colour. In its autumnal plumage the upper parts of the body are more of a brownish grey, the under surface satiny white; the head and neck bright grey.

The range of this bird is pretty nearly the same as that of the species last described; it is not, however, so numerously met with during the winter season. It makes its appearance in Germany about the end of March, and remains in that country so long as the waters are free from ice; but during the winter it takes up its abode in the south of Europe. In Great Britain it is met with as far north as the Hebrides, and in the southern counties of England may be seen throughout the year.

It usually selects for its residence some large pond well provided with reeds and rushes, and it is also occasionally to be found in morasses and other swampy localities. It seems to avoid clear water; its food, which consists principally of insects and their larvæ, being more abundantly met with in ditches and muddy places. In its habits and mode of life it closely resembles other members of its family; it seems, however, to be more active than the larger species, and uses its feet with more facility in running.

In swimming and diving it may be said to excel even its congeners, but its powers of flying are very limited, owing to the shortness of its wings. Its flight, indeed, is said by Naumann to resemble that of a grasshopper. In summer time it is very shy, and can only be approached with difficulty, but in the winter its shyness diminishes, so that it will even come near villages, and at this season it frequently falls a victim to its own carelessness. When alarmed it immediately dives, and if further threatened with danger, secretes itself in the water under the shelter of the herbage, leaving nothing but its beak visible above the surface, and thus it will remain until all cause for apprehension is removed. Its voice is a short piping note that sounds like "bib" or "bibi," and this during the pairing season is repeated so rapidly that it sounds something like a "shake" upon some musical instrument.

The nest of the Little Grebe is always placed among water-plants, but is never hidden from view; more commonly, indeed, it is rather a conspicuous object; it is, however, invariably removed from the sides of the pond. In its appearance, it is just as rudely constructed, as wet and uncomfortable-looking as that of the species last described. In this floating cradle the female, towards the end of April or the beginning of May, lays from three to six elongated eggs, the colour of which seems to depend upon that of the plants of which the nest is composed. Upon these eggs, both the male and the female sit alternately for twenty or twenty-one days. As soon as the young are hatched they betake themselves to the water, where they are taught and tended by their parents in the same manner as those of the Crested Grebes described above.

The DIVERS (Colymbi) may be regarded as the marine representatives of the Grebes, from which, however, they are at once distinguishable by their larger bodies, shorter neck, more bulky head, and stronger beak. These birds are fully webbed; their wings are short, and their quills, the second of which is the longest, hard and stiff; the tail is composed of from sixteen to twenty close-set feathers. The coloration of the thick warm plumage varies considerably at different seasons of the year. The number of species belonging to this group is very limited; of these only three are recognised as belonging to Great Britain; namely, C. glacialis, C. arcticus, and C. septentrionalis. The members of this group are essentially sea-birds, only visiting rivers or lakes of fresh water during the