Strange sounds in Conklin, Alberta

This video was posted on YouTube yesterday. Give it a listen, let me know what you think.

Both my husband and son are currently working in Conklin. I've asked them to see if they can find out who these guys are. Cory is pretty certain this is a slashing crew.

This has been posted on a couple of other websites and forums, with many theories being generated. Including some who think it is a hoax.