Carolina Wren (Thryothorus ludoviciantus)

Two Carolina Wrens snuggled together in a cardboard box for the night.
Only a few leaves and twigs in the box, not much of a nest underway.

In the morning when I stumble into the kitchen for coffee, I often hear wren song emanating from the garage.  I open a door for them to exit while they fly around and perch waiting for me to get out of their way.  Only one of the pair sings, the other is always silent.  I suppose the male sings territorially.