This "Crested Serpent Eagle" was sitting on a tree with its wings opened for sunning its feathers after the rain. Bird sunning is the act of spreading out in full sunshine to expose plumage and skin to direct sunlight. When sunning, birds orient themselves to expose the maximum amount of their plumage to the sun. In cold weather or early in the day, birds sun themselves for warmth by taking advantage of solar radiation. This allows them to maintain their body temperature without expending as much energy from food and it can increase their chances of survival in cold climates or when food is scarce.
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