Mimicry by Grey Butcherbird and others (was GreyButcherbird mimicry) correction of typo

["Greg & Val Clancy" <>]

It is interesting to note that when thornbills caught for banding mimic 
other birds' calls they do so with 'whisper mimicry'.  I have also heard 
free-flying Mistletoebirds using 'whisper mimicry'.  As it is likely that 
only the bird doing the mimicry and the bander holding the bird could hear 
the sound its purpose is baffling.  'Whisper mimicry' my occur more often in 
free-flying birds but unless an observer is very close they would be 
unlikely to hear it.

Greg Clancy
Ecologist
Coutts Crossing
NSW