Boxes 5 & 6 have had numerous visitors. In the past, I have only observed Eastern Bluebirds around the boxes. This week brought a surprise, a very brown Tree Swallow, likely a bird hatched last year, perched on the roof. A male-looking Tree Swallow was nearby, as well as a third Tree Swallow. They moved to a nearby perch as I walked by. I'll check this box soon to see if someone has taken up residence.
There are five eggs in this nestbox at last count. This is the female getting ready to leave to find some insects.The average incubation time for Tree Swallows is 14-15 days, which means soon there will be some hatchlings.
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