. The Avicultural magazine . half months. Neck grey, feathers on and tail witl, l,;u nisi. Adult with ten (lays ohr-FROM CHANGE TO CHANGE THE CREATURES RUNTHE LIFE-HISTORY OF THE BLACK-NECKED SWAN. Photos hy F E. Bla Adiard A Son & West Ntwman. Ltd. A moot questio7i. 63 A MOOT QUESTION. By Dr. A. G. Butleh. All matters of interest in relation to bird-life should be freelyventilated, and the experience of many observers brought forwardand tested in order to arrive at the truth. For this reason I havenot hesitated to express my own views touching the c
. The Avicultural magazine . half months. Neck grey, feathers on and tail witl, l,;u nisi. Adult with ten (lays ohr-FROM CHANGE TO CHANGE THE CREATURES RUNTHE LIFE-HISTORY OF THE BLACK-NECKED SWAN. Photos hy F E. Bla Adiard A Son & West Ntwman. Ltd. A moot questio7i. 63 A MOOT QUESTION. By Dr. A. G. Butleh. All matters of interest in relation to bird-life should be freelyventilated, and the experience of many observers brought forwardand tested in order to arrive at the truth. For this reason I havenot hesitated to express my own views touching the change of colourin certain birds without or with only a partial moult. As a verystrong argument in favour of this view, I quoted the statement (bynot one only, but many writers) regarding the loss of colour in thewings of the Touracous after they have been exposed to heavy rain,and its recovery shortly afterwards, in my letter to the Editor,published in our Magazine for 1918, p. 108. In his • Ornithologie Nordost Afrikas, vol. i, p. 702, Heuglinsays: It is known that in consequence of the extremely slight greasi-ne
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbirds, bookyear1894
