When dealing with rodent (specifically Rats) infestation and or prevention. What is the best way to deal with new rats finding the existing burrows (even after the entrances have been sealed).
IOW - After evicting several rats and about a week past since any activity - an existing hole was re-opened. Assuming these arent the same rats, but new ones (hence the time gap) -- how/why do they find the areas of interest, and what can be done to mitigate this?
Original Question - not a direct Home Improvement Question
CITY/ALLEYS/RATS -- I get it, they exist
We have an area in the back yard, that had an impressive rat burrow under a concrete slab. After 2 months of smoke and traps, we got 8 rats evicted. We've closed the holes, and for over week there has been no movement around the known entrances.
Just this AM, there was digging at one of the most frequented entrances.
Im trying to understand how rats work. Do they migrate to other feeding areas/burrows through the week, and are now coming back to this one? Or is this a new potential potential occupant for that burrow - but how do they know it's there?