Home Away From Home, by Cynthia Lord

Going to visit Grandma in Maine in the summer is an annual tradition to which Mia looks forward.  This year is different.  Mom is in the process selling their house and Mia is going to have to move away from her neighborhood (and maybe even her friends).  Mom is sending her alone to Grandma's to get her out of the way during the staging.  All alone, it's hard for Mia to feel good about the stay.  

Things only get worse when Mia discovers that her grandmother has a new friend -- a boy of her age named Cayman who seems to always be hanging around.  It's bad enough that she's losing her own home, but now she has to share Grandma?

But the summer is full of surprises.  There's Cayman himself, who turns out to have a complicated history and is much less of a threat than Mia first imagined.  There's a stray cat who is hanging around the house for whom no one can find a family.  And there's a rare bird -- a Gyrfalcon -- that has blown off-course and taken to harassing the local  resident Bald Eagles.  And when Mia makes a tragic mistake that endangers the bird, everything changes.

I found this to be a satisfying middle reader with lessons about personal responsibility and caring for others.  There are lots of details about birds and cats and the proper care of each to satisfy young curious minds.  And there are nice dynamics between Mia, Grandma, and Cayman.  While the topic of alcoholism is briefly brought up, it is handled in a very safe and age-appropriate manner.