with Mackerel shoals.--During- the months of July, August and September, Mackerel (Scomber scomber) habitually enter the Village Bay of Hirta, St, Kilda, in the late afternoon and evening. These shoals are often pursued by Grey Seals (Halichoerus gryphus) and the fishes crowd together near the surface of the sea, actually breaking the water over an extensive area. Gannets (Sulci bassana), from the...

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