This request below has come from the line. I replied
that several Australian birds do this (the most immediately obvious is the
Magpie-lark) and the person requesting was interested in Australian examples too
(though I don't immediately recall locations of published examples). If you have
any serious information about this, please respond to .
Philip
Can anyone suggest a reasonably recent reference on
duetting, preferably a review in a readily available
publication!
Thanks,
Derek
Pomeroy
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