Which insect order is frequently cited as a major dietary component besides Lepidoptera larvae?
Answer
Diptera (Flies)
While caterpillars (Lepidoptera larvae) are often found to be the most frequent item delivered to nestlings, the insect order Diptera, which consists of flies, is frequently cited as constituting a major dietary component overall for the Willow Flycatcher. Flies are frequently available as fast-moving aerial targets, making them susceptible to the bird's sallying technique. Although Hymenoptera and Hemiptera are also consumed, Diptera holds a more prominent position as a significant food source in dietary analyses.
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