When a human cared jackdaw learns to fly it must be accepted by its original colony on the town square, but when a cruel politician hunts the colony into a cold forest, the jackdaw is being blamed and must rebuild trust to the town people so the colony can return home.  

I’m a little confused. The jackdaw protagonist has to rebuild trust from the rest of the colony or the townspeople? If this politician has chased them out, why is he not just going to do that again? Surely in order to regain their home they must either get rid of the politician or do something for the townspeople to want them there. Do the jackdaws talk to each other? Do they talk to humans?

You say “must be accepted” – I would reserve “musts” for the goal. Since this has to happen for the story to happen and is fundamental to give us the goal, I would just go with “is accepted”.

Why does the politician chase the colony away?

This is very wordy and there’s a lot that can easily be trimmed. Why does it matter that this happens when the jackdaw learns to fly? Why is it a cold forest? “being blamed” can just be “blamed”. Think about what is absolutely necessary to understand this story and ditch the rest. You’re aiming for 35 words or less (fewer the better).

My biggest issue is that I just don’t see how, once they’ve been kicked out, they can ever return back. Rebuilding trust doesn’t automatically get their home back so even if they trust people again it doesn’t mean anything. You’ve set the politician up as the antagonist – not people in general. So in order to get their home back they have to deal with this politician directly.

Why jackdaws? Just out of curiosity.