In waking life, I love pigeons but I know that some people hate them and think they are dirty and want them to keep away. In my dream, I was in a room somewhere (I don't remember the details). There was some other woman in the room. A pigeon flew in the window. It flew to the other end of the room, where this other woman was. I thought she was going be angry at me for letting the pigeon in. Then I remembered that I had petted the pigeon after it flew in, and it was soft and fluffy, so then I realized that it wasn't a pigeon but a cat. I looked again, and there was a cat near me, so I petted it.
I did a google image search of "pigeon cat." Do any of the images jump out at you as far as what the dream was conveying? pigeon cat - Google Search
Maybe http://weedoom.com/wp-content/uploads/2009/11/cat_and_pigeon_weedoom.com_.jpg It was a tabby cat (but that is probably because in waking life I have only had tabby cats) and the pigeon was near a dresser or similar peace of furniture in the back of the room.