Hi Evan and all,
Yes, Rockwarblers do occur in limestone, the most obvious example is
their presence at Jenolan Caves, but they are also known from
Wombeyan and Abercrombie Caves, among others. There are also a number
of records of them in granite, e.g. during the 1980s I recorded them
breeding in a small cave under boulders at Evans Crown near Tarana
NSW. Evidence was that they had used this site for more than one
season. I failed to find them in subsequent years and suspect they
went extinct from that location - although I haven't been there in
the last few years (would be very interested to hear if anyone has).
There was also a thread on Birding-Aus about Rockwarblers in granite
in Feb 2004 - see
http://bioacoustics.cse.unsw.edu.au/birding-aus/2004-02/msg00464.html
cheers
Carol
At 6:12 AM +1100 4/12/06, Evan Beaver wrote:
I went canyoning in Bungonia yesterday, following Bungonia Creek. I
didn't have bins, but some good birding was had none the less. A
square tailed kite was seen frequently, scanning the ridgetops. Also,
and strangely, very close views of Origma which surprised me. The
canyon is limestone mostly; definitely not the Hawkesbury Sandstone I
thought the warblers were confined to.
Evan Beaver
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Carol Probets
Guided birding in the Blue Mountains & Capertee Valley
PO Box 330
Katoomba NSW 2780
Web: http://www.bmbirding.com.au
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