Zep I've seen many cormorants flying over the pond, approaching up to 6/7 yards to the water, turn back and fly away.
But my pond is far from where I live so I'm not there often.
A friend of mine has his koi 0.2 ac pond in the backyard and he has seen a couple times cormorants trying to land hitting the lines and flying away. Maybe 'cause he used a thinner monofilament, I don't know.
