What food category do berries and seeds supplement in the Whinchat's diet, primarily occurring in autumn?
Answer
Plant matter when insects decline
The Whinchat exhibits dietary flexibility in response to environmental changes, particularly as insect availability wanes seasonally or due to adverse weather. When the abundance of invertebrates decreases, typically as autumn approaches, the birds adapt by incorporating non-animal matter into their intake. This shift involves consuming small seeds and soft fruits, such as blackberries, moving them towards a more omnivorous state temporarily. This adjustment is vital for maintaining energy levels during periods when their primary, high-protein insect diet is compromised, aiding in pre-migratory fueling.
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