foundling mouse age

Question
I found a mouse a few days ago and do not know how old it is, but it is about the size of a quarter.  It's eyes are open, but it's movements are not very graceful yet.  It seems to drink some water and eat a few solid foods.  I have not tried to give it any milk and it has survived for two whole days.  I think it is a field mouse because it is gray with a white belly.  It has a big head in comparison with it's body.  Would you be able to tell me how old it is?

Answer
Dear Wimmy,

I find your question in the "question pool" from 25 days ago.  If your mouse had its eyes open but was clumsy 25 days ago, it was about 18 days old.  That would put it at about 43 days, or six weeks, right now.  I hope it has survived!

 If you have any further questions, feel free to send them to me.  Have fun!

squeaks,

Natasha