In article , Katra wrote:
Live traps don't work well for Norway rats...
They are too smart. Been there, done that, caught a few youngsters but
no adults. :-(

Norway rats are probably smarter than roof rats, which is what we had
where I used to live. Roof rats are so bold they run around in packs
in broad daylight. They're not very big tho, a little smaller than
typical "pet rats".

~REZ~