The canary is read as song, joy and a voice that wants to be heard. Because miners once carried canaries as early warnings, dream books also see it as sensitivity to an atmosphere that feels wrong.
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.