. Birds of the British Isles. Birds -- Great Britain; Birds -- Ireland. BIRDS OF THE BRITISH ISLES. !83 Blacft ^ The Black Tern {Hydrochelidon nigra^ Linnaeus) is a fairly regular spring and autumn coasting migrant to the British Isles, and inhabits the South-western Palearctic Region. The adult in summer has the head and neck deep slate- grey ; crown and nape, blackish; under wing-coverts, light grey; upper parts and tail, dark bluish-grey, the latter forked; throat, breast, and abdomen, deep slate-grey; vent and under tail-coverts, white; irides, dark hazel; bill, black; legs and feet,

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. Birds of the British Isles. Birds -- Great Britain; Birds -- Ireland. BIRDS OF THE BRITISH ISLES. !83 Blacft ^ The Black Tern {Hydrochelidon nigra^ Linnaeus) is a fairly regular spring and autumn coasting migrant to the British Isles, and inhabits the South-western Palearctic Region. The adult in summer has the head and neck deep slate- grey ; crown and nape, blackish; under wing-coverts, light grey; upper parts and tail, dark bluish-grey, the latter forked; throat, breast, and abdomen, deep slate-grey; vent and under tail-coverts, white; irides, dark hazel; bill, black; legs and feet, deep reddish-brown. Length, about ten inches. The adult in winter has the crown, nape, fore- head, cheeks, throat, and front neck, white; remainder of plumage, as in Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Duncan, John, of Newcastle upon Tyne. London : W. Scott

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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbirdsireland, bookyea