The ptarmigan turns white in winter and brown in summer, so it is read as adapting to the season and blending in to stay safe. It stands for knowing when to stay unnoticed.
Where in your waking life have you met something like this lately?
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.