Ultra-sonic call of WT Nightjar

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Ultra-sonic call of WT Nightjar

To:	"" <>
Subject:	Ultra-sonic call of WT Nightjar
From:	Glen Ingram <>
Date:	Thu, 18 Sep 1997 11:03:31 +1000

This is from Ray Leggett who is not on Birdg-aus.

"Recently I was using Anabat, which puts bat calls into our hearing
range. I was circled twice by a White-throated Nightjar at night at
8.00pm in July 1997. The instrument registered the nightjar giving an
ultrasonic call. This happened twice. 

Does anyone know if an ultrasonic call has ever been noted in Australian
nightjars. Is this a first. And is it an important observation."


Glen Ingram
Brisbane, Australia


"He who laughs, lasts."

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