Bladbadende vogels, en meer
Drentse vogels , Volume 7 - Issue 1 p. 71- 72
Foliage-bathing, in which birds flutter against wet leaves to get soaked, was observed in Crested Tit Parus cristatus (dew-bathing in oak, spring 1990, province of Limburg) and in Chiffchaff Phylloscopus collybita (after rainfall, following prolonged dry period, leaves of Prunus serotina and Viburnum opulus, 24 July 1994, province of Drenthe). Following an observation of Wheatears before sunrise, in which only the flashy white rump was seen, it is hypothesized that the rump patch may be of help during nocturnal migration to keep in touch with conspecifics (given the apparent absence of contact calls at night).
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