Marilyn,
How about natural predation by birds of prey. e.g. Red Goshawk, Grey
Falcon, Peregrine Falcon, Australian Hobby, Little Eagle, Square-tailed
Kite. This could be as high as 8 on your list in terms of numbers. Before
you eradicate these threats, please let me see a Red Goshawk first .....
And there is parasitism by cuckoos.
Mangrove destruction is a problem, but hardly rates number 3 by
itself. Probably just best left as part of general habitat destruction in
number 1.
________________________________________________________________
Frank O'Connor Birding WA http://www.iinet.net.au/~foconnor
8C Hardy Road Email :
Nedlands WA 6009 ICQ : 14655047
Phone : +61 8 9386 5694
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