This species, although a regular summer visitor to the valley of the Rhine and Moselle, has only once found its way to our shores. Its home is throughout Central and Southern Europe, migrating southwards from the more northerly portions of its range in winter. The head and throat are whitish, streaked with dark brown; rest of the plumage brown, more rufous on the breast. The female is rather darker on the head. Length 24 in.; wing 18 in. THE HONEY BUZZARD Pernis apivorus (Linnæus) This migratory species, which is widely distributed throughout most of the wooded districts of Europe, visits us annually on both its spring and autumn migrations, and a few pairs generally attempt to nest in suitable localities. The greed of the egg-collector has sadly diminished the number of these summer residents, though with adequate protection moderate numbers might again be induced to spend the summer months in these islands. The adult has the head greyish; upper parts brown; under parts white, barred and spotted on the breast. Length about 23 in.; wing 17 in. THE GREENLAND FALCON Falco candicans, J. F. Gmelin This species breeds in the Far North, in Greenland, Jan Mayen, and Novaya Zemlya, migrating southwards in winter. A good many examples have from time to time been taken in Great Britain, chiefly, as would be expected, in Scotland and Ireland. The adult is white, streaked on the upper parts with black, and sometimes slightly spotted below. Young birds are much more heavily marked. Length 21 in.; wing 14·5 in. The female is slightly larger. This Falcon may be distinguished in all ages by the prevailing ground colour being white. THE ICELAND FALCON Falco islandus, J. F. Gmelin This species is confined to Iceland, though very closely allied forms may be found in South Greenland and Labrador. Its visits to these islands have not been nearly so numerous as those of the former species. The general colour of the upper parts is brownish grey, becoming greyer with age, with pale buff markings. Under parts whitish, the flanks barred with dark brown. Length of male 21 in.; wing 14·5 in.; the female is rather larger. THE GYR FALCON Falco gyrfalco, Linnæus Two examples of this Scandinavian and North Russian species have been obtained in England. It is very closely allied to the Iceland Falcon, but the head is darker and the under parts are very thickly barred. Length 19·5 in.; wing 14 in. THE PEREGRINE Falco peregrinus, Tunstall