That's just anthropocentric emotion. The North American mink is a successful, adaptable predator. They are not evil or "nasty": just doing what they're wired to do. They are not welcome in the wild here in Britain because they are alien intruders and can have an impact on our ecology, in some instances a significant one. But "wiping out our native species" is not an accurate assessment. Of course, a local situation can be dramatically affected if hundreds of mink are suddenly 'liberated' from a commercial fur farm by so-called animal rights activists.
But mink are certainly bold. Earlier in this thread I mentioned seeing an otter and an ermine on a stretch of the Aberdeenshire Dee. Another February, on that same stretch of river, I was fishing down a long broad pool with spinning tackle (no longer allowed on the Dee). I suddenly noticed a mink sitting on the bank about 20 yards downstream of me. It seemed very interested in what I was doing and looked every time my Devon minnow dropped into the river. As I got closer to the animal, I let my lure swing round right in towards the bank. It was very cold that February and an ice ledge had formed right along that stretch that extended out about a yard into the river. I wound the lure up to the surface and, with a quick lift of the rod tip, managed to flip the Devon out of the stream onto this ice ledge, close to the mink. The animal leapt for the minnow and I had to wind in like crazy to prevent it catching the lure as it came skittering along the ice ledge towards me. The mink followed the Devon practically to my feet and only sheered off when I lifted the rod and swung the minnow clear away. The animal gave me a long hard stare from barely 10 feet away, uttered a little angry chitter, and ran off. I'm sure I could easily have foul-hooked it with the big treble hook had I let it catch up with the lure. I'm glad I wasn't that stupid!
Mine was not a unique experience. I've read of other occasions where anglers have had a stand-off with brazen mink trying to steal bait, or fish that have been caught and carelessly left lying on the bank.
Burnt Ash