Great Crested Grebes (Podiceps cristatus), especially when nesting in large colonies, are known to suffer huge egg losses during storms. However, if the devastation of nests is not complete, partial or entire clutches can still be saved. The effects of high waves and strong wind can be countered to some extent by continuous and accelerated building. Even eggs floating in the water inside the remains of destroyed platforms may be recuperated by rebuilding the nest around and pushing the eggs with the beak ever higher on the weed. Due to the high resistance of eggs to cooling, they may even hatch after having passed several hours in cold water. In addition, grebes are capable to resume or continue laying quickly to replace lost eggs.
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Vol. 30 • No. 1