Today one of the broody hen's chicks got attacked by something. She has wounds under both wings, which I have sprayed with calendula spray. But my biggest concern is that one of her sides seems to be inflated with air and she makes a strange kind of popping sound when she peeps and when she breathes. Please help ASAP, I really want this little one to make it!
Here are some photos:


This is her inflated side.
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And here's her 'normal' side for comparison.
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Here are some photos:
This is her inflated side.

And here's her 'normal' side for comparison.

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