Keith and all,
 Yes this is true BUT.. in all cases I've noticed one important 
requirement is a lip or flake on the roof of the cave that they can 
attach/hang the nest from. Sandstone caves seem to provide this more 
often than granite and possibly limestone. When they nest in 
human-made structures, it's always attached to a lip such as an 
overlapping sheet of iron or similar. Where there isn't such a 
feature the nest is likely to fall down. At least, with all the nests 
I've seen this is the case.
cheers
Carol
Keith Brandwood wrote:
 Hi ALL, it does not surprise me that these NSW endemics are found in 
other than sandstone, they nest in caves and such so where ever 
there are such structures within there range they will use it.
keith b the beautiful Hawkesbury 60km N/W of Sydney
  
Carol Probets
http://www.bmbirding.com.au
===============================
www.birding-aus.org
birding-aus.blogspot.com
 To unsubscribe from this mailing list, 
send the message:
unsubscribe 
(in the body of the message, with no Subject line)
to: 
===============================
 
 |