That’s great news Cheetie! I’d like to add when cleaning out the old nest after the baby blues have fledged I use a spray bottle with scalding hot water. It helps break down any fecal matter the babies left inside that often gets caked on the insides of the box. The hot water will also kill any mites or other insects and wash them out of the nestbox as well. Once its cleaned out, simply leave the nestbox open for a couple hours to dry. Once it’s dry inside close it and it will be ready for the bluebirds when they return for their next brood. Most of the time if the bluebirds had success with their 1st nesting in your nestbox they may return for a 2nd nesting.
Dana,
in PA