All posts in Bluebird Nesting & Life Cycle

Because bluebirds can’t excavate their own nesting cavities, a nest box is often the single most impactful thing a homeowner can do for them — but only if the box is built and placed correctly. Get the hole size wrong and you invite House Sparrows…

If you’ve opened a nest box and found a small clutch of pale blue eggs nestled in a neat cup of fine grass, you’ve very likely found an active bluebird nest. Here’s what’s normal, and what the timeline from laying to hatching actually looks like….

If there’s one factor that has shaped bluebird population history more than any other, it’s competition for nest cavities from two introduced, non-native species: the House Sparrow and the European Starling. Understanding how each one threatens bluebirds, and what you’re legally and practically able to…