The dream, in which you saw the chickadee, denotes to unexpected situations or people you will have to face. The dream suggests you to get ready for the unknown.
Dream dictionary: Chickadee dream meanings
The chickadee indicates the people who are having problems while living the life but doesnt take them seriously. No matter what are the circumstances, the people are still staying positive. This dream explanation could be applied not only to the dreamer, but to the person that takes important part in his life.