Raven stone 'fossiking'

To: <>
Subject: Raven stone 'fossiking'
From: "Peter Ridgeway" <>
Date: Thu, 7 Apr 2011 10:26:54 +1000
An interesting observation from colleague Phil Mulhearn:


'In front of my apartment is a large flat roof covered with pebbles. One
morning recently I observed a raven fossicking among the pebbles -
surprising as there is nothing to eat there. I observed that he had a large
pebble in his bill, about 15mm diameter (too big to swallow).  Around the
pebbled roof there is a low wall and it is very difficult to access. Yet
every now and again a new pebble appears on top of it. Could the ravens be
putting them there and if so why?'


Has anyone seen similar behaviour before?


Peter Ridgeway | Volunteer Coordinator| Birds Australia Discovery Centre



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