The chestnut-backed chickadee nestlings fledged on May 1, 2022. On April 30, a Bewick's wren started building a nest in another nesting box.
This year's wren nest (spring 2022):
A pair of Bewick's wrens started building a nest on April 30, 2022, and finished it within a few days. They visited the nest briefly almost every day for about 6 weeks, but they never roosted on it or laid any eggs.
This year's chickadee nest (spring 2022):
Nest building Mar 4-9: Nesting material brought in, 20 to 200 trips per day
Roosting starts Mar 9: Daytime away, nights on nest
Egg laying Mar 21-26: Daytime away, nights on nest; 1 egg laid per day
Incubation Mar 26 - Apr 9: Most of day and all night on nest
Hatching Apr 8-9: Most of day and all of night spent on nest