J. H. Van Balen

Food in two Mediterranean Blue tit populaitions: Do differences in carterpillar availability explain differences in timing of the breeding season

J. Blondel, J. V. Balen, Jacques Blondel, 1990 .

A Comparative Sudy of the Breeding Ecology of the Great Tit Parus major in Different Habitats

J. V. Balen, J. H. Van Balen, J. H. Balen, 2015 .