Читать книгу Report on the Migration of Birds in the Spring and Autumn of 1881. Third Report онлайн

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Pelicanidæ.—Autumn: Records from Sumburgh Head, Pentland Skerries, and Isle of May. Earliest July 1st, Gannets pass Pentland Skerries daily in flocks of twelve to forty, or singly, and continue till middle of September, which is the latest record I have. Rush past Pentland Skerries appears to have been on Aug. 19th, when 2300 were counted between daylight and dark, flying chiefly E., and very few going W. On Aug. 4th large numbers at 2 p.m., at Sumburgh Head, fresh breeze, cloudy. At this station Gannets are noted as very scarce all summer, owing, it is believed, to scarcity of herrings.

Ardeidæ.—Spring: Only one Heron recorded at Whalsey Skerries, on May 29th, 8 p.m., S.E. light airs, clear; fog from N.W. after 11 p.m.—Autumn: Records at Sumburgh Head, Pentland Skerries, and Isle of May. Earliest Aug. 16th, at Sumburgh Head, flying N., chased by Gulls, light E. airs; latest Nov. 24th, at Isle of May, one seen, strong S.W., showers; Rush Sept. 3rd to 6th, at Isle of May, during which time eight were seen, all flying S., and four on the 5th, came from N., alighted and remained; wind on 3rd fresh E., and haze; on 5th fresh N.E., clear; and on 6th light W., and haze (see Note, infra). Rush also on Oct. 12th, 13th, and 14th, previous to gale of 14th, but statistics scanty. All Herons seen at Isle of May almost invariably fly S. Prevailing winds at Isle of May, W., till gale on 14th from N.N.E.