My cat is a little over a year old. He started sneezing blood. Took him to the vet and got antibiotics for a respiratory infection.
He is an indoor outdoor cat but after the vet visit he stayed in and slept a lot. Then he felt better and went out. That was in June. It's October and he hasn't come home.
I thought something happened until recently. I saw him once in my front yard, and he acted like he didn't know me. I then had a dead bird on my step, thinking it was him, then again today in the yard.
He doesn't respond when I call him. I did notice he has a new collar on. What is wrong?