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Martínez, J., Calvo, J., Jiménez-Franco, M., Zuberogoitia, I. och López-López, P. 2016. Colour morph does not predict brood size in the Booted Eagle. Ornis Fennica. 93, 2 (juli 2016), 130–136. DOI:https://doi.org/10.51812/of.133895.