What term describes the intense eating period utilized before the southward migration?
Answer
Hyperphagia
Before undertaking the arduous journey between northern breeding grounds and African wintering sites, the Willow Warbler engages in hyperphagia. This physiological state involves a period of excessive eating specifically aimed at building up the necessary fat reserves required to fuel such a demanding transcontinental flight. During this phase, foraging activity becomes nearly relentless, concentrated in insect-rich areas, as the bird prioritizes energy density over other concerns like territorial defense.
Related Questions
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