I had an otter give me a savage liner on St Ives, swam through with no fear then just went underwater never to be seen again once it clocked me, I found lots of evidence on there though a dead pike, loads of zebra mussels all over the bank,
I seemed to think there didn't seem as many birds on the lake I am fishing now earlier this year, but last time I thought there were more so I will keep an eye on them this winter see if they dwindle again, that could be the duck eating catfish I've heard about though 😬