『The Ptarmigan: Arctic Master of Camouflage』のカバーアート

The Ptarmigan: Arctic Master of Camouflage

The Ptarmigan: Arctic Master of Camouflage

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 A detailed overview of the ptarmigan, a bird uniquely adapted to survive in the harsh Arctic and sub-Arctic tundra. It highlights the species’ seasonal camouflage, shifting from rusty-brown summer plumage to pure white in winter, a strategy that helps it blend in with snow-covered landscapes, similar to the Arctic fox.
A key adaptation described is the “mammalification” of its feet, where thick feathers and enlarged claws develop in winter, functioning like furry boots and assisting in digging burrows for shelter. The bird also follows Allen’s rule, maintaining a rounded body shape to minimize heat loss, and survives on a diet of low-calorie twigs during winter.
The passage notes that ptarmigans often gather in large flocks for added protection against predators, such as foxes, demonstrating a combination of physical and behavioral adaptations that allow them to thrive in extreme cold.

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