was killed, but it must have been some time in the spring, as it was in full breeding-plumage.  There is also one in full breeding-plumage in the Museum, so it must occasionally stay on some time into the spring.  The young birds and adults in winter plumage, when it is the Dusky Grebe of Bewick, are very much like the Eared Grebe in the same state of plumage; but they may always be distinguished, the Sclavonian Grebe always being rather the larger and having the bill straighter, and making a more regular cone than that of the Eared Grebe, which is slightly turned up.  In the full breeding-plumage there can be no possibility of confounding the two species.

The Sclavonian Grebe is included in Professor Ansted’s list, but only marked as occurring in Guernsey.  There are two specimens in the Museum, one in full breeding-plumage and one in winter plumage.

151.  RED-NECKED GREBE. Podiceps griseigena, Boddaert.  French, “Grebe jou-gris.”—­I have never seen a Channel Island specimen of the Red-necked Grebe in full breeding-plumage as I have the Sclavonian, but it is a tolerably regular autumn and winter visitant, and in some years appears to be the more numerous of the two.  Certainly in November, 1875, this was the case, and the Red-necked Grebe was commoner than either the Great-crested or the Sclavonian Grebe, especially about the Guernsey coast between St. Peter’s Port and St. Samson’s, where I saw several; and a good many were also brought into Mr. Couch’s about the same time more than usual.  One which I obtained had slight traces of the red about the throat remaining, otherwise this one was like the others which I saw in complete winter plumage.

The Red-necked Grebe is included in Professor Ansted’s list, but only marked as occurring in Guernsey.  There is one specimen in the Museum.

152.  GREAT-CRESTED GREBE. Podiceps cristatus, Linnaeus.  French.  “Grebe huppe.”—­The Great-crested Grebe is a regular autumn and winter visitant to the Channel Islands, but not, I think, in quite such numbers as at Teignmouth and Exmouth and along the south coast of Devon.  I have not shot this bird in the Channel Islands myself, nor have I seen it alive:  but I have seen several Guernsey-killed specimens.  These were all young birds or adults in winter plumage; and I have one, a young bird of the year, killed in the Guernsey harbour late in November, 1876.

It is included in Professor Ansted’s list, but only marked as occurring in Guernsey.  There is one specimen, a young bird of the year, in the Museum.

153.  GREAT NORTHERN DIVER. Colymbus glacialis, Linnaeus.  French, “Plongeon imbrim.”—­The Great Northern Diver is a common autumn and winter visitant to all the Islands, arriving early in November, perhaps even about the last week in October.  The earliest date at which I have seen it myself was on the 9th November.  A considerable majority of these autumnal visitants are young birds of the year,