Hearing the Striated Grass-wren

To: David Dickson <>, "" <>
Subject: Hearing the Striated Grass-wren
From: Chris Brandis <>
Date: Mon, 12 Oct 2020 23:32:33 +0000
Years ago before I got hearing aids I used a Magenta Bat4 bat detector 
precision with some success for Variegated Fairywrens. Battery operated and 
small, range 15-130 kHz. You have to scan the kHz range and if it picks up it 
makes a sound in the audible range with 2 pickups to assist direction finding. 
Once you know the frequency you are looking for it is easier but not as good as 
having someone with you that can hear them. Even good hearing aids do not help 
me pick up wrens easily.
Cheers Chris

-----Original Message-----
From: Birding-Aus <> On Behalf Of David 
Sent: Monday, 12 October 2020 11:58 AM
Subject: [Birding-Aus] Hearing the Striated Grass-wren

I have dipped on sighting the Striated Grass-wren and the Mallee Emu-wren on 
each of my last three trips to Hattah-Kulkyne NP. I use the approach to finding 
these birds suggested by Rohan Clarke and Tim Dolby, “walk slowly and quietly 
while listening for their high-pitched calls.” I have spent days trawling 
through ideal mallee spinifex habitat and heard not a squeak - deafening 
silence. I would say my hearing is in the normal range for someone my age - 67.
Is there a readily affordable microphone that can pick up the high frequency 
calls and ‘convert’ them into something I can hear? I imagine that people 
interested in bats face a similar problem and are able to access equipment that 
enables them to hear their calls.
Dave Dickson

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