What distinct sound accompanies the Costa's Hummingbird male's courtship dive?
Answer
Ringing or chiming sound
During the male's courtship flight, specifically as he pulls up from the high-speed vertical dive, the air vibrating through his tail feathers creates a specific auditory component. This sound is consistently described as being ringing or chiming in nature, pairing the visual spectacle of the iridescent flash with an auditory signal to the female. This sonic element is integral to the elaborate performance used to attract a mate.
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