Robyn
My guess would be the Water Rat.
Greg Little
Greg Little - Principal Consultant
General Flora and Fauna
PO Box 526
Wallsend, NSW, 2287, Australia
Ph 02 49 556609
Fx 02 49 556671
www.gff.com.au
-----Original Message-----
From:
On Behalf Of Robyn
Sent: Saturday, 29 March 2008 11:40 AM
To: Birding-aus
Subject: Nankeen Night-Heron Feeding
Does anyone have experience of the feeding habits of Nankeen
Night-Herons?
I volunteer at a wetlands sanctuary in south-east Queensland and am
trying to identify the creature which is leaving crab remains on a crab
hide. The crab hide is a timber structure built on the side of a
salt-water creek off the river and is roughly 800 mm above the mud.
The remains are from the Scarlet Three-spined Mangrove Crab
(Neosarmatium trispinosum) and are grouped on one corner. There were
originally just a few nippers, then more, and as time goes on, more and
more nippers, legs, carapaces, etc. Always the one species of crab,
although it is not the most numerous in the area, it is probably the
biggest-bodied crab.
My first thoughts were a mammal - water rat, melomys, bush or ship's
rat, etc. - but they don't fit. White Ibis feed and regurgitate in the
area, but this is very different.
Do Nankeen Night-herons move from where they catch prey to a feeding
platform? Do they eat crabs whole or pull them apart to eat?
I have seen a night-heron in the area quite some time ago, but not
recently. Would appreciate any knowledgable comments.
Thanks
Robyn Howard
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