Because of the old idea that it buries its head in the sand, the ostrich is read as avoiding a problem you would rather not see. Its speed and size also stand for grounded power.
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.