On April 17, Karyn Traphagen traveled with me on the Museum Bluebird Trail to check on the occupants of our six nest boxes. You may have already seen Karyn’s Tweets and photos on the subject as she took photos of all the boxes that were occupied.
There have been a few changes, as you might expect, the incubation period and growth in nestlings is not a drawn out affair with songbirds, things progress quickly.
Last week there were five eggs in the nest box up near the Train Tunnel (at the edge of the farm field). There are now five nestlings in that box and all look as though they’re doing well.
The nest box near Gate 3 on the west side of the Butterfly House, which held three nestlings last week, now has four nestlings. This nest originally had four eggs but during last week’s inspection of the box I could only find three nestlings and no eggs. There must have been an egg under the nestlings that I couldn’t see at the time.
If you’ve clicked on the link above you can see how quickly these birds grow. They’ll probably fledge before the next inspection.
The nest box that had a wasp nest inside during the last two inspections, was empty, no wasps, and no birds. But, and this is a big happy BUT, there was a House Wren singing in the woods behind the nest box, the first House Wren of the season here at the Museum. I’m betting that when I peek into this box next week it’ll have within it the twigs and sticks of a wren nest.
Although the nest boxes are built and intended for bluebirds, I’m happy to see wrens, chickadees, nuthatches, titmice, or swallows use them as well.
So, after our third week of nest box inspections we totaled 11 bluebird eggs and 9 nestlings, 6 or 7 chickadee nestlings (it’s hard to count those little guys when they’re wiggling around), and one empty nest box.
I can’t wait till next week!