Typically Common Loons lay two eggs, each of which is roughly four inches long and olive green to brown in color, with brown or black splotches. The eggs are laid one to three days apart with the 28-day incubation period beginning when both eggs have been laid. Both parents incubate, turning the eggs when they switch places or during long periods of incubation. If the loon on the nest is anxious for relief, it will give a “wail” call, and if its mate does not respond, it continues wailing, even after leaving the nest to find its mate.
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