| If you can smell them, that is an infestation. Very unsanitary. You need to call and exterminator STAT. Hanta virus is real and can kill you and your family. |
Chicken wire is too big. |
| Rat nests have a strong smell. Also dead mice. |
Yeah they are nimble little creatures and able to squeeze through holes smaller than that. Hardware cloth is what one seeks. Finer mesh screen can be chewed open by mice. |
Practice. Maybe you got a bad batch. Little rough sanding on the arm/catch will roughen them up and make them harder to trip. |