Hello, I am monitoring a nest box. On 3/30 I found one egg, it was brown with darker speckles. When I checked it yesterday (7 days later) April 7th, I found 5 eggs. Four eggs were the brown speckled and one was white with brown speckles. The white egg looks about the same size as the brown eggs.
Is a differently colored egg normal? What could be the cause of the white egg?
I'll attach a picture, sorry it is not better, my camera battery when dead (of course) as soon as I took this one pic.