Interactions between ants and breeding Paridae in two distinct Corsican oak habitats

Insects and avian cavity-nesters share the same nest boxes in different oak habitat types on Corsica. The proportion of boxes occupied by ants did not differ between broad-leaf deciduous and evergreen oak woodland, but differed significantly between reproductive stages in two Paridae species. Different types of interactions between ants and avian hole-nesters are reported and discussed.