Many of the Georgians that provide eastern bluebird with nesting boxes are wondering how the large amount of rain and days and days of warm weather we have seen this year might affect the bird’s nesting efforts. Well, it just so happens that studies conducted by researchers in Ohio just might help answer this question.
Interesting findings, Terry. Last season we had a bluebird nest box with eggs already laid when the March 13 freeze hit. The freeze was of long duration. About ten hours, I believe. But the eggs hatched anyway despite the length of the freeze.
I have a bluebird box in Georgia with 3-4 nests per year. The first clutch has a low survival rate. When the babies fledge respiratory issues keep them on the ground. We had a rainy Feb and March past few years.. Out of 5 eggs, 5 fledge, 1 lives. 2nd clutch: 5 eggs; 4 fledge; 3 live. 3rd clutch: 3 eggs; 3 fledge; 2 live
Kat,
Thanks for the detailed data you have collected. When you can look at the details regarding each nesting effort, it really drives home the fact that rainy weather in February and March can have a deleterious impact on nesting success.
Terry
That is a great observation!