Anne:
It is interesting that social birds such as the corella and apostlebirds
are "quieter and apparently less stressed" when a mirror is placed in their
cages. This makes me wonder about the role of visual vs vocal feedback in
calming caged birds. In this case, the mirror doesn't answer back although
there is visual feedback, of sorts. Have you ever documented when the birds
are quieter? Are they initially quieter, but eventually become more active?
Do the vocalizations change quality as well as volume (a decrease in volume
is what I assume you are referring to when you use the word "quieter"). And
lastly, what do you mean when you say "less stressed"? Is there a sex
difference? Your observations are very interesting.
Cheers, Jim
P.S. If no one responds here, perhaps we can pursue this topic on ibirding?
Dr Wm James Davis, Editor
Interpretive Birding Bulletin
www.ibirding.com
> There's more to mirror behaviour than territory and defence matters. As
> mentioned by others in relation to Babblers, social birds relate to them
> quite differently. Everyone would be familiar with the practise of
> putting a mirror in a budgie's cage but I've also had personal
> experience of the effectiveness of this with adult rescues of a Little
> Corella and an Apostlebird. Both were much quieter and apparently less
> stressed with a mirror to perch next to.
> Anne
>
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