August.—One Skua, "rare," flying E.; seen at Pentland Skerries on 3d. Five or six other entries of Gulls, Herring Gulls, Black-Backed Gulls, and Kittiwakes, all at Pentland Skerries.
September.—Four entries of Gulls, all at Pentland Skerries, and in great numbers; immense numbers on 16th, 18th, and 25th.
October.—At N. Unst, flock of young Kittiwakes (wind N.W.) flying W. on 21st, and again on 22d. A number of Gulls at Pentland Skerries on 16th and 24th.
December.—Two Ivory Gulls at N. Unst (W., strong breeze) on 2d. Two Iceland Gulls at N. Unst (N.W., and snow) on 10th.
Procellariidæ.—Petrels.—August.—One on 17th and one on 23d at Pentland Skerries at night; struck, not killed. This appears to be the only record. They winter upon N. Unst as also, no doubt, at many other stations.—(See forthcoming volume upon the "Vertebrate Fauna of the Outer Hebrides," where winter colonies of Petrels, etc., will be spoken of more fully.)
Alcidæ.—Few entries as compared with most years.
January 1887.—At N. Unst flock of Marrots; "soon arrived this year;" S.S.W., strong breeze, and hail. "Rare to see any so soon."
February.—At N. Unst on 19th, Tysties, a flock of, "first arrival early;" and on 14th, four Tysties arrived at Noss Head, where, we are informed by the light keeper, a few breed! On 15th, at same station, a great many Marrots and Razorbills arrived.
March.—7th, at Noss Head, Guillemots, "many more arrived to-day, and all day;" and on 1st, "many arriving all day."
April.—3d, at Pentland Skerries, Puffins arrived during the day, "earlier than last year by a week." [Note.—These arrival dates of rock birds are always interesting, as also are their movements at other times.]