Good on you for the rescue. Here's my story about rescuing a black rat with ahead injury.
I rehabed a black rat that had taken a severe blow to the top of the head from a vehicle. I initially thought she was DOR but she turned out to be clinging to life.
As it happened, she had what amounted to a severe concusion. She was lethargic, and groogy. She drank, but wasn't interested in eating - in fct she became very defensive when presented with mice. Live, pre-killed or frozen-thawed didn't matter.
It took more than a month for her to recover from the effects of the concussion, and over two months before she accepted a pre-killed mouse. I wormed her and she eventually began to eat FT mice.
I eventually released her when it became clear that she was not adjusting to captivity.
Pictures on the road, in rehab, and recovered.



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I am so not lesdysxic!
0.1 Creamsicle Cornsake "Yolanda"
1.0 Bairds Ratsnake "Steely Dan"
0.1 Desert Kingsnake "FATTY"
0.1 Black Rat "Roberta" RELEASED!!!