E N Derim-Oglu

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Hollow-dwelling passerine birds were tested for UV surface colour discrimination by using the instinct to bring food to nestlings that makes a bird search for the nest under changing conditions. The experiments were carried out on breeding pairs of pied flycatcher (Muscicapa hypoleuca), great tit (Parus major) and tree sparrow (Passer montanus) in the wild(More)
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