Hi, Janet.
I study great bowerbirds in Townsville and have always observed the
bower-owning male to immediately attack other bird species which approach too
closely to the bower, provided the intruders are smaller than the bower owner.
However, most males are fairly tolerant when young males of their own species
visit for a while. Perhaps male satin bowerbirds will tolerate young regents
because they seem similar enough to satins in behaviour and size, if not in
color.
The Friths wrote a fascinating article about great and spotted bowerbirds
interacting at each others' bowers. They observed juveniles of both species
carrying decorations to the other species' bowers. These males also displayed
at the other species' bowers. In fact, several bowers in the area exhibited
characteristics which are usually unique to each species. Here is the reference
for the article in case you are interested:
Frith, C.B., Frith, D.W. and McCullough, M. (1995). Great and spotted
bowerbirds Chlamydera nuchalis and C. maculata sympatric and interacting at
each others' bowers. Australian Bird Watcher, 16, 49-57.
Natalie Doerr
--- On Wed 09/28, Glassco < > wrote:
From: Glassco [mailto:
To:
Date: Wed, 28 Sep 2005 21:45:41 +1000
Subject: Bower birds
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<DIV><FONT face=Arial size=2>Birders, I have been reading an old
book written about the time of 1917 & mention was made of observing a
Satin Bower sharing his bower with a Regent Bower bird. The latter brought
some display objects to the bower & the SBB allowed them to remain with his
"treasures". Has anyone seen this behaviour?</FONT></DIV>
<DIV><FONT face=Arial size=2>
Janet</FONT></DIV></BODY></HTML>
<p>
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