RFI When do Frogmouths call?

["michael norris" <>]

Hi all

Near me there is a Tawny Frogmouth which I have seen calling (and in the 
dark I could not be certain there were not two birds) from a newly-made nest 
(the gum leaves are green).
Is it calling FOR a mate? Or because it ALREADY has a mate?

The Reader's Digest Book of Australian Birds (my old edition) says they mate 
for life and both birds call from the nest site.  But is says nothing about 
attracting a mate.
Help?!

Michael Norris
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www.birding-aus.org
birding-aus.blogspot.com

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