What social behavior often indicates the presence of the Black-and-Yellow Tanager in the correct habitat stratum?
Answer
Frequently joining mixed-species flocks
The gregarious nature of the Black-and-Yellow Tanager provides an excellent field indicator for birders. These birds are often observed actively feeding not in isolation, but as active participants within mixed-species flocks. Therefore, discovering a flurry of activity, characterized by multiple species foraging together in the mid-canopy of a humid forest, strongly suggests that the observer is in the correct habitat stratum where the target species is also likely to be present and actively feeding, even if the yellow-and-black individual is not immediately spotted.

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