Powerful Owls

To: <>, "kbrandwood" <>
Subject: Powerful Owls
From: "Stephen Ambrose" <>
Date: Thu, 11 Jan 2007 15:07:16 +1100
Hi Everyone,

There does seem to be several resident pairs of Powerful Owls in the bushland 
areas of the Lane Cove catchment area in the northern suburbs of Sydney. 
Individual owls are often recorded in suburban gardens at night, particularly 
in gardens close to bushland, and are probably searching for possums and 

Rod Kavanagh of NSW State Forests is probably the best person to comment on 
survival rates of offspring, longevity, and the status of PO nest hollows in 
the Sydney area. One thing that I am concerned about is the number of PO 
roadkills in the Lane Cove Catchment area. I've personally observed four PO 
roadkills in this area over the last 2 years, so there have probably been more 
road kills observed by others.   All four roadkills were on busy arterial roads 
that are close or adjacent to bushland areas where POs were known to roost by 
day and presumably forage by night. This leads me to ask the following 

q        were these birds disturbed from their day-time roosts;

q        were they immature birds who were inexperienced at dodging heavy 

q        were they pursuing prey at the time of being hit by a vehicle;

q        has it become more difficult for Powerful Owls to dodge vehicles 
because of increased traffic on our roads and urban encroachment on their 
natural habitat; or

q        have road kills been a function of increased numbers of Powerful Owls 
in the Lane Cove River Catchment Area?



Dr Stephen Ambrose

Ryde, NSW

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