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Bettega, C., del Mar Delgado, M., Campioni, L., Pedrini, P. and Penteriani, V. 2011. The quality of chicks and breeding output do not differ between first and replacement clutches in the Eagle Owl Bubo bubo. Ornis Fennica. 88, 4 (Dec. 2011), 217–225. DOI:https://doi.org/10.51812/of.133785.