Early yesterday morning, one egg was crushed while the female was on the nest. A while later, the male removed the broken egg from the nest. Crushed eggs during incubation is not that uncommon. It is a possibility we need to investigate any time we determine a nest failure cause.
So, what’s the deal? Are loons just naturally clumsy? Well yeah, they are, at least when they are out of the water. But there are other factors that can exacerbate the problem.