Honza, M., Piálková, R., Albrecht, T., Neužilová, Š. Nest defence against conspecific intruders in the common pochard Aythya ferina: natural observations and an experimental test. Acta Ornithologica. 2009, 44(2), 151-158. ISSN 0001-6454. E-ISSN 1734-8471. Dostupné z: https://doi.org/10.3161/000164509X482713.