HOMBERGH LME VAN DEN (1959) Short announcements: Domestic ducks Anas platyrhynchos dead Western Jackdaw Coloeus monedula who attacks their young by drowning. LIMOSA 32 (1): 74-74.

Mallard Anas platyrhynchos Western Jackdaw Coloeus monedula Domestic ducks Anas platyrhynchos dead Western Jackdaw Coloeus monedula who attacks their young by drowning

[free pdf] [dutch summary]