Quantification and proportions of different situations during usurpation of the nests in different seasons and species (OA = occupation of abandoned nest, FOA – failed occupation of abandoned nest, TU – true usurpation, FU – failed usurpation, DI – disappear, MO – move, NL – nest-less, NLMO – nest-less for a few days then move, PE – persist in the original nest).

<p>Quantification and proportions of different situations during usurpation of the nests in different seasons and species (OA = occupation of abandoned nest, FOA – failed occupation of abandoned nest, TU – true usurpation, FU – failed usurpation, DI – disappear, MO – move, NL – nest-less, NLMO – nest-less for a few days then move, PE – persist in the original nest).