Cats will go into cages , no problem. I have caught bobcat, feral cats in cages regularly where i have used cages. I usually cover cage a bit with brush and put grass or dirt on wire bottom inside. I leave back open from debri or sticks so cat can see thru cage. Bait can be alot of meats , everyone has thier own ideas. Here in WI you cant have sight exposed bait so if using inside cage either cover inside cage or cover over top of cage. Cats hunt with thier eyes and ears so you could also use a squeaker nearby or shiny object hung on string to attract cats. Good luck