Where have all the bluebirds gone?

These babies belong to the pair of bluebirds that we've been serving dinner to every evening. I took this photo two days ago. Sometime this morning the babies fledged. There were 3 or 4 of them. I never could discern more than 3 when I checked the nest, but my husband thinks there were 4 of them. We haven't seen them since they fledged, but this evening there was a pair of bluebirds inspecting the recently vacated nest box - no babies in sight. Did the parents lose their babies in a matter of hours???? or (I hope) is this a different pair??? We gave them some mealworms which they ate in a matter of seconds, but I saw no sign of them delivering any worms to nearby babies.


bluebirds