pee stains.

I get tons of hogs in my garden and haven't seen pee trails. The only trail i have on my lawn is a line of thick lush grass from when I dumped a 25 litre drum of liquid gold because i needed the container. More likely cat urine. I'll see someone who is a hedgehog rehabilitator tomorrow so I'll ask her about their.
Leave gaps in fences and walls with neighbours, piles of lawn clippings and piles of sticks and brush around your garden and if they are around they'll visit for a nosey. They generally prefer open space with clumps and mounds to forage in. Then get out at night and have a look. If you leave a section of lawn unkempt you will also pull in grass moths and nocturnal predators eg bats.

Have to laugh at my neighbour sometimes. They spend all day every day out in the garden fussing about stupid details manicuring their garden and at least once a week they take in a sackbarrow of materials. His soil is terrible. Sandy, hardpan and full of weeds because he used a cultivator to get rid of perennial weeds and sprays his garden with micacle grow from a venturi attachment from a pressure washer. They spend another fortune trying to attract wildlife into their garden.

Sounds like my neighbour JPA. You don't live next door but one to me do you?

Haha,no. I think everyone has a neighbour like this and one that takes doing nothing to the extreme so even the most intrepid wildlife is scared to go in there. She says they are going for the "cottage garden look". It's only a 70sqm garden how on earth can they have to take in sackbarrows of stuff each week.
I don't remember how green or flat or nicely edged my lawn was when I was a kid, I remember playing with the other children making daisy chains, giving the the buttercup-chin test, looking for 4 leaf clovers, playing with worms and trying to get the other kids to eat dandelions so they'd wet themselves. Happy days.