Ardea
Official journal of the Netherlands Ornithologists' Union

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Mooij J.H. & Vos B.J. (1978) Zu einigen neu festgestellten Lautšusserungen des Waldkauzes (Strix aluco). ARDEA 66 (1-2): 48-52
During observations on nightly nest-behaviour of Tawny Owls (Strix aluco) we heard some calls, which, as far as we know, have not or only partly been published. This publication deals with some of these calling-notes of the female (stimulation- call, Fig. 1.), the male (stimulation call), and the young Tawny Owls (two kinds of call-of-discomfort, Figs. 2 and 3).


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