I hate telling this story, but I will in the hopes that you will get some tips on how to find your cat.
Thanksgiving 2007, I went to California for a week to see a friend. I was going to hire a pet sitter, but my parents begged and pleaded to be allowed to keep my two cats. I was reluctant, because my cats are indoor only animals, and my father has a habit of leaving doors and windows open. I made them promise to be vigilant about that, and they agreed.
I returned on the Saturday after Thanksgiving to discover that my father had left a window open (no screen) for TWO DAYS, and didn’t tell anyone else in the family when he discovered my cat Rex was missing. He also didn’t look for Rex, or even put out a dish of food, for another day after that, until my mother realized he was gone.
My father then refused to “let” anyone call me and tell me the truth of what had happened. My parents also decided it was too much trouble to actually look for the cat. So they didn’t. And it was extremely cold, with snow on the ground. And my parents live in a wilderness area.
Starting the very night I returned, I searched all around the house. Indoor cats usually hide very close to the house when they escape. Even though it had been six days since his escape, I spotted Rex right up near the house. He ran away in fear, though, and I couldn’t catch him.
I continued to circle the house looking for him for several hours. No luck. So I sat outside in the cold for another full day, hoping to see him if he poked his head out. No luck.
So I called a pet detective for advice. She told me to get some Have-A-Heart traps and put one where I had last spotted Rex, and the others in areas close to the house. I covered the top and back of the trap with a beach towel to make it seem warm and cozy. I put a blanket with his scent inside. I baited the traps with tuna fish (though jack mackerel is cheaper and recommended). You are supposed to check the traps every four hours.
On Monday night, I caught Rex in the trap I placed in the area where I had seen him. In fact, I caught him in the first four hours they were out. I checked the traps at 2 a.m. and there he was, skinny and scared, after eight days in the snow.
The thing is, indoor cats often freak out when they get outside, if they have no experience with the outdoors (or little experience). They will stay close to the house and hide themselves very carefully, squeezing into nooks and crannies.
Good luck!