Interspecific variation in the relationship between clutch size, laying date and intensity of urbanization in four species of hole-nesting birds by Vaugoyeau, M, Adriaensen, F, Artemyev, A, Bańbura, J, Barba, E, Biard, C, Blondel, J, Bouslama, Z, Bouvier, J, Camprodon, J, Cecere, F, Charmantier, A, Charter, M, Cichoń, M, Cusimano, C, Czeszczewik, D, Demeyrier, V, Doligez, B, Doutrelant, C, Dubiec, A, Eens, M, Eeva, T, Faivre, B, Ferns, P, Forsman, J, García-Del-Rey, E, Goldshtein, A, Goodenough, A, Gosler, A, Grégoire, A, Gustafsson, L, Harnist, I, Hartley, I, Heeb, P, Hinsley, S, Isenmann, P, Jacob, S, Juškaitis, R, Korpimäki, E, Krams, I, Laaksonen, T, Lambrechts, M, Leclercq, B, Lehikoinen, E, Loukola, O, Lundberg, A, Mainwaring, M, Mänd, R, Massa, B, Mazgajski, T, Merino, S, Mitrus, C, Mönkkönen, M, Morin, X, Nager, R, Nilsson, J, Nilsson, S, Norte, A, Orell, M, Perret, P, Perrins, C, Pimentel, C, Pinxten, R, Richner, H, Robles, H, Rytkönen, S, Senar, J, Seppänen, J, Pascoal da Silva, L, Slagsvold, T, Solonen, T, Sorace, A, Stenning, M, Tryjanowski, P, von Numers, M, Walankiewicz, W, Møller, A