Glad to hear you're getting crawfish in your minnow traps. Our crawfish disappeared 20 years ago from our traps -- in Winnipesaukee waters described by Lake officials today as "pristine".
East Rattlesnake is adjacent to the greatest untainted bulk of fresh water in Winnipesaukee. (In width and depth). That might explain your success.
Chipmunks are reported to kill birds, so a chipmunk carting a dead mouse doesn't sound crazy.
We used to catch more of these Fallfish (also called Roach) than smallmouths. They do look like giant shiners. As tablefare, Fallfish rate a "poor", though they are in the 2-3 pound range. Shiners themselves have declined bigtime. Below is a prior Forum posting on Fallfish.
Freshwater sharks exist -- it's not a silly idea. Lake Nicaragua (in Nicaragua, appropriately) supports a thriving population. It turns out they swim in from the Pacific Ocean through natural tunnels -- but thrive in freshwater anyway, not aware that they're "not supposed to".
New Hampshire lost all of its wild bores following the primaries.
New Hampshire has wild boars.
Fallfish