I am so happy! My little House Wren that nested last year in the Alabama-shaped bird house that my best friend got me is back!!! I am upset, however, because a pair of House Sparrows seem to be trying to take it over and chase him away. Grrrrrr.
If you want to attract wrens to your yard, House Wrens or others, here are some nest box plans.
Schutz, Walter E. 1973. Bird Watching, Housing and Feeding. Milwaukee: Bruce Publishers
Check out my other posts on bird houses!