ANTING BY BIRDS 119 Busgen, N. and Munch, E. 1929. The Structure and Life of Forest Trees. London. Bush, R. 1942. Soft Fruit Growing. Penguin, London. -------. 1943. Tree Fruit Growing. Penguin, London. Curtis, O. F. 1935. The Translocation of Solutes in Plants. New York. Dixon, H. H. 1924. The Transpiration Stream. London. Edlin, H. L. 1945. British Woodland Trees. London. -----------. 1947. Forestry and Woodland Life. London. Fritsch, F. E. and Salisbury, E. J. 1938. Plant Form and Function. London, Gilbert-Carter, H. 1936. British Trees and Shrubs. Oxford. Henderson, F.Y. 1944. Timber, its Properties, Pests and Preservation. London. Hyde, H. A. 1935. Welsh Timber Trees. Cardiff. Jane, F. W. 1938-9. Some Fungi in Wood. Essex Naturalist, vol. 26, pp. 30-50, 107-113. Paulson, R. 1923. The Fungus root (Mycorrhiza). Essex Naturalist, vol. 20, pp. 177-89. Priestley, J. H. 1935. The Growing Tree. ------------and Scott, L. I. 1938. An Introduction to Botany. London. Rayner, M. C. 1927. Mycorrhiza. London. --------- and Neilson Jones, W. N.D. Problems in Tree Nutrition. London. Somerville, W. 1927. How a Tree Grows. Oxford. Ward, H. M. 1904-9. Trees. Cambridge. ANTING BY BIRDS BY WILLIAM E. GLEGG, F.Z.S., M.B.O.U. [Read in abstract October 30th, 1948] THIS habit, in so far as ornithologists in general are concerned, may be described as new, although after the interest of students had been stimulated older evidence was unearthed. It may make my remarks more intelligible if I give a definition of the term "anting." I use it to mean the application of ants by the birds themselves to their plumage. The purpose of the habit remains obscure. There is evidence to show that forms of life other than ants have been used similarly by birds. The earliest record of anting appears to be that of Abbott M. Frazar, who describes in 1876 (Bull. Nuttall Orn. Club, vol. 1, p. 76) anting by a tame Crow (Corvus americanus). A. H. Chisholm, in his article "The Problem of Anting" in The Ibis, 1944, pp. 389-405, relates that it was not until 1934,