I like the game camera idea!
Eagles & ospreys carry off their victims from my pond, back to their nest or away from the pond to a more secluded area.
Otters have not left much after their meal to show that they were there, except for the TGC that was about 25# to big to eat everything & to big to carry off.
I watched a great blue heron spend more than a half hour trying to get a 9" CNBG positioned so he could swallow it.
He finally did! He looked very proud of himself.
Might there be a two footed predator?
