> What fish kills adult ducks? From the referenced article on Wikipedia, it seems to be https://en.wikipedia.org/wiki/Tilapia https://en.wikipedia.org/wiki/Til

> What fish kills adult ducks? From the referenced article on Wikipedia, it seems to be https://en.wikipedia.org/wiki/Tilapia https://en.wikipedia.org/wiki/Tilapia but they seem to be mostly talking about competition for food supply rather than direct killing of adult ducks: > fish, especially Tilapia, have depleted essential food supplies and likely increased nest-predation for the species (Pidgeon 1996). The introduction of Tilapia into Alaotra probably had a devastating effect on the pochard and other more widespread waterbirds preferring emergent vegetation