Holes edges of pond

[jcummins]

For some time I've noticed holes at the edge of the pond primarily around the dam area. Lately it seems that these holes are getting a little bit more numerous and some of the soils breaking away going into the pond. It's not a tunneling like muskrat coming from the inside of the pond it's almost like it's a crawdad hole that's enlarged over time and eventually breaks away the edge of the bank.

Here's some pictures. What is causing this, what should I do to fix.

 

[Dftodd]

They look like crawfish holes. Around here they look like that if they are in an area that doesn't flood. If the area is prone to flooding, then they have mud mounds around them.

 

[jcummins]

They are BIG relative to other know crawdad holes.

 

[kcflhrc]

Yep, Crawdaddy's

 

[jaxs]

They are BIG relative to other know crawdad holes.

No skinny dipping or dangling bare feet in pond and you shouldn't have a problem.

 

[muskieken]

wonder if these would work (The mole spike enter the soil to create sonic waves and vibrations to scare away burrowing rodents such as moles, gophers, voles and other burrowing pests )

https://www.amazon.com/Redeo-Repellent-Generation-Repeller-Deterrent/dp/B07R195X1Z/ref=sr_1_4?crid=2NMILMZZ58KUH&keywords=mole+repeller+solar+powered&qid=1559537113&s=lawn-garden&sprefix=mole%2Clawngarden%2C194&sr=1-4

 

[Thomas]

Yep crawfish holes, raccoon mink etc. will take care of that problem.