There are two specimens in the Museum in Guernsey both in immature plumage; in that state, in fact, in which this bird most commonly occurs, and in which it is the Bald Buzzard of Bewick. Miss C.B. Carey records one in the November number of the 'Zoologist' for 1874 in the following words:--"In the May of this year an adult male Marsh Harrier was found in Herm. Unfortunately it got into the hands of some person who, I believe, kept it too long before bringing it over to be preserved, so that all that remains of it is the head." I had no opportunity of examining this bird myself, not even the head, but I am disposed to doubt its being fully adult, as it seems to me much more probable that it was much in the same state as those in the Museum, in which state it is much more common than in the fully adult plumage. Miss Carey seems only to have seen the head herself, so there may easily have been a mistake on this point. Mr. MacCulloch writes me word that a Marsh Harrier was killed in Herm in May, 1875. It may be just possible, however, that this is the same bird recorded by Miss C.B. Carey, and that Mr. MacCulloch only heard of it in the May of the following year, and noted it accordingly. This, however, is mere supposition on my part, for which I have no reason except that both birds were said to have been killed in Herm, and both in May. Professor Ansted mentions the Marsh Harrier in his list, but marks it as only found in Guernsey. 12. HEN HARRIER. _Circus cyaneus_, Linnaeus. French, "Busard St. Martin."[6]--The Hen Harrier, perhaps, occurs rather more frequently than the Marsh Harrier, but it can only be considered a rare occasional visitant. In June, 1876, I saw one young Hen Harrier, which had been shot in Herm in the April of that year, about the same time as the Iceland Falcon, and by the same keeper, who had brought it to Mr. Couch to stuff. Another was shot in Herm on the 19th of June, 1877. This bird is now in Mr. Maxwell's collection, where I saw it on the 27th of June. It was first reported to me by Mr. Jago, the bird-stuffer in Guernsey. These are the only two Channel Island specimens of the Hen Harrier which I have been able to find. I have never shot it myself or seen it alive. It is, however, included in Professor Ansted's list, but marked as occurring in Guernsey only. [13. Omitted.]