I recently (February 2021) began feeding a flock of 35 ravens in my backyard. In the spring and summer months I have 3 to 4 families of mallards and woodies raising their families in my pond and swamp. Am I setting myself up for a problem by continuing to attract ravens to my yard? Will they terrorize my ducks and steal their eggs? I guess I prefer seeing the ducks but enjoy the ravens also. Looking for advice.
If you have common ravens (Corvus corax) then you may have a problem there
Ravens are regular predators at bird nests, brazenly picking off eggs, nestlings and sometimes adult birds when they spot an opportunity. - wikipedia
Ravens are omnivores in the true sense, they will eat just about anything that's too small to fight back and too slow to get away.