I am a big rat fan and have 2 ratty boys which I adore. However, wild rats are vile. They kill baby birds in the nest, are perfectly capable of catching and killing a bird on the feeder, they carry leptospirosos which is very dangerous to animals and children. They pee as they walk and spread the lepto everywhere they go. You cannot trap and release it somewhere else as the somewhere else will be another rat populations territory and it will get attacked and die slowly if it manages to escape. Get the council to come out and bait your garden. They do it for free. You have seen one rat, but there will be at least 20 more around. Each female will breed every 8 weeks, each female she prodices, will start to breed at 12 weeks old .You simply cannot be sentimental about killing wild rats.
Being a poultry keeper I have to have permanent bait boxes on my land. They chew their way into poultry houses, kill bantams and one even chewed its way into the aviary shed where I kep my pet barn ow and attacked her, blinding her and causing brain damage. Wild rats are poisoned here, while Roger and Bodger get petted and handles and fed the best of everything. You won't keep the rats down with a humane trap but you will cause the rat immense stress and suffering by releasing him onto another rats territory and may also remove a nursing mother rat and leave her babies to starve to death. You could make it so it cannot get to the feeder by suspending the feeder with string further away from the main tree trunk and making a cone lid to hang above it.
Here is one of mine.
Being a poultry keeper I have to have permanent bait boxes on my land. They chew their way into poultry houses, kill bantams and one even chewed its way into the aviary shed where I kep my pet barn ow and attacked her, blinding her and causing brain damage. Wild rats are poisoned here, while Roger and Bodger get petted and handles and fed the best of everything. You won't keep the rats down with a humane trap but you will cause the rat immense stress and suffering by releasing him onto another rats territory and may also remove a nursing mother rat and leave her babies to starve to death. You could make it so it cannot get to the feeder by suspending the feeder with string further away from the main tree trunk and making a cone lid to hang above it.
Here is one of mine.