What structural adaptation allows the kiwi (Apteryx) to forage effectively on the forest floor at night?
Answer and explanation
Correct answer: D. Nostrils at the bill tip and a keen sense of smell to detect subterranean invertebrates
- Step 1: Uniquely among birds, the kiwi has nostrils at the very tip of its long flexible bill. Step 2. It possesses highly developed olfactory bulbs and tactile sensory pits to sniff out and probe for earthworms and insects in dark leaf litter. Answer: Nostrils at the bill tip and a keen sense of smell to detect subterranean invertebrates. Why not the others: Kiwi have tiny vestigial wings and small, poor eyes.
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