A bad odor from the beak could be Sour Crop.I didn’t realize my message clearly had so many typos, my apologies.
Yes, I meant beak….There is a bad odor, she hasn’t been able to eat or drink on her own, although she did manage some watermelon and the smallest amount of crumble yesterday. She is now severely malnourished but seems to be a fighter… I am trying to make a humane decision. I will read the link on sour crop, it’s not impacted. Thank you.
Is she now able to stand and move about?
The treatment(s) in the article are what I use when addressing crop symptoms. If you have questions, please let us know. Do remember that often crop symptoms are a result of an underlying condition, so since she's struggling with presumably something else, this may be why the crop is sluggish and has turned sour.