What is the most effective initial method for locating a flock of waxwings hidden high in the canopy?

Answer

Listening for their high, thin, buzzing calls

Their constant, high-pitched calls are often the first audible clue, especially when the birds are obscured from sight while feeding high in the canopy.

What is the most effective initial method for locating a flock of waxwings hidden high in the canopy?
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