To encounter or to see a scarecrow, when you are dreaming, shows the period of time, that is accompanied by feelings of hopelessness and inadequacy. Are you feeling depressed? Maybe you are going through some critical situation in your life. Try to think more positive and try to find some help.
Dream dictionary: scarecrow dream meanings
If you see a scarecrow in your dream, then it means that you feel desperate about some situation or life. Make sure you find the solution to the anxieties that has caused lots of pain.
You should learn how to tame your feelings and control your reactions better.