EGG-CITE FOR WHITE!
WHITE BLUEBIRD EGGS? It happens. Approximately 5% laying female bluebirds are missing the pigment gene to color the eggs blue as they pass through her oviduct. The eggs are just as fertile, generally, as the blue ones. Note the slightly pinkish hue. I’ve seen them before actually pure white. When I first saw those feathers, I thought Tree Swallows. But no, they are bluebirds. There are not enough of the right feathers for TRES and I saw the pair in the tree above me anyway. To read up more about white bluebird eggs, here is a great page for that: http://www.sialis.org/whiteeggs.htm