Several full clutches of Bluebird eggs

The pair on the North side, if it is the same pair, had a bit of bad luck last summer, but eventually raised at least two nestlings. Now they have a full set of four eggs in the box, where it was just one egg a week ago.

Swallows allowed me to check a few nests. Some had more than three eggs, but none I found had the full 5-7 eggs. Cool weather and less insects times their egg laying and incubation.