Isabelline Shrike on the Isle of May

LAST September Miss Winifred Flower and Miss M. I. Kinnear observed at the Isle of May a shrike which did not appear to resemble any of the species described in The Handbook. Full details, together with field sketches, were forwarded to Oxford and were seen by the late B, W. Tucker, who accepted the record as referring to the Isabelline Shrike, Sir Norman Kinnear has compared this material with s...