Stomach stones in Meadow Pipits Anthus pratensis
1984; Taylor & Francis; Volume: 31; Issue: 1 Linguagem: Inglês
10.1080/00063658409476813
ISSN1944-6705
Autores Tópico(s)Avian ecology and behavior
ResumoAbstract If birds swallow grit as an aid to digestion, as usually supposed, why do only a minority of stomachs contain such stones? Could there be another purpose?
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