Poignant, sweet and melancholy. Nicely done. The beginning was vague enough to allow some wonder and imagination, then by the end it ties together to get your message across.
I like this bird’s POV on the tragedy of deforestation. Now, I’d like to challenge you even further. I’d like to see you go even further into your protag’s POV. Try to imagine the way a bird would think. He or she would have no frame of reference for human items, such as armies or hats. For example, Richard Adams in Watership Down had his rabbits create their own terminology for human items such as cars (hrududu), and had their own ideas and theories on the origins and uses of these items, based on their shared personal experience as well as mythology. I’d like to see you handle your story in that way as well.