. Bulletin of the British Ornithologists' Club. Bulletin 31 Vol. 85 Notes on variant Whitethroats by R. E. Scott and J. G. Harrison Received Nth October, 1964 Sage (1962) includes the Whitethroat Sylvia communis Latham among those species for which albinism has been recorded within the British Isles. Later (Sage, 1963) shows that the seven species of Sylviidae for which he has albinism recorded comprise less than 1% of the total records he had available. Similarly, Glegg (1931) can attribute only one of his 210 Essex records of albinism to the Sylviidae. During 1964 a total of 543 White
. Bulletin of the British Ornithologists' Club. Bulletin 31 Vol. 85 Notes on variant Whitethroats by R. E. Scott and J. G. Harrison Received Nth October, 1964 Sage (1962) includes the Whitethroat Sylvia communis Latham among those species for which albinism has been recorded within the British Isles. Later (Sage, 1963) shows that the seven species of Sylviidae for which he has albinism recorded comprise less than 1% of the total records he had available. Similarly, Glegg (1931) can attribute only one of his 210 Essex records of albinism to the Sylviidae. During 1964 a total of 543 Whitethroats were trapped at Dungeness Bird Observatory. Romney Marsh, Kent and all examined closely in the hand. Of these only three (or ) showed any evidence of albinism. DESCRIPTIONS A. An adult male trapped on 2nd May, 1964 with an all white terminal band to the tail extending for some 13 mm. from the tip. In all other respects the bird appeared normal. The tail ( mm.) had not completed. Photograph: Pamela Harrison Whitethroat with white terminal tail band Photograph: J. Houston Buff coloured Whitethroat growth; all twelve feathers were still in sheath at base. Tail lengths of spring male Whitethroats at Dungeness range from 55 to mm. and clearly this individual was nearing the completion of its tail growth. All other measurements and weight ( gms. at 0700 hrs. GMT) fell within. 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 British Ornithologists' Club. London : British Ornithologists' Club
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