Hi @yellowboxwoodland, Nice sharp images, I can even see guard hairs. What make and model of trail camera took these photos?
At the risk of telling what you already know, there is not necessarily any need to take action against Black Rats. They are widespread in urban and many bush areas. If action is taken, it is necessary to be careful, especially in a bushy place like yours. Our regulators (APVMA) have let us down in that the most widely used rodent control methods are a real threat to wildlife, especially owls and other birds. Please dont bait with '2nd generation' anticoagulants such as Brodifacoum. If you bait at all, only use Warfarin. Any moribund animals or carcasses are toxic to birds so dispose of them where wildlife cannot get them. The better solutions are like the one illustrated in the photo, e.g. wherever possible make things inaccessible to rodents (well sealed door) in preference to killing them, and to some degree accept them. They are probably present in most older houses but the human residents are mostly unaware of them.