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Nature & Animals

When small birds forage near forest edges, which consequence occurs regarding their feather condition?

A)Increased wear reduces parasite load
B)Reduced preening alters aerodynamics
C)UV exposure accelerates pigment bleaching
D)Abrasion impairs water-repellent properties

💡 Explanation

Increased foliage contact subjects feathers to abrasion, a mechanical process. This damage diminishes feather microstructures because this compromise disrupts the interlocking barbules necessary for water repellency; therefore, feathers absorb water rather than remaining dry and insulating.

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