A pet bird stands for a small, cared-for joy, and also for freedom kept within walls. How it behaves in the dream is read as how comfortable you feel in a safe but limited place.
When this appeared in your dream, what were you feeling?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.