canberrabirds

Black Falcon

To: Philip Veerman <>
Subject: Black Falcon
From: martin butterfield <>
Date: Mon, 19 Mar 2012 15:32:41 +1100
The key point is that the Goorooyarro bird and the one in Hoslinstown were both seen yesterday.  That wasn't explicitly stated in my previous message and I have just realised that the summary from Birdline was for members of that group not  the Chatline version (which normally comes a little later). 

While it is physically possible that they were the same bird the probability is rather low

On Mon, Mar 19, 2012 at 2:08 PM, Philip Veerman <> wrote:
This is a really trivial comment on the last thought. Of course no reason why these observations could not be two or several more than two, birds. However I don't agree on the logic there. At 35 km distance, that would be, potentially well under an hour's easy flying time for that bird. Over a period of over the past few months one bird could easily cover that distance many times. They are a wanderer.
 
Philip
 
-----Original Message-----
From: martin butterfield [
Sent: Monday, 19 March 2012 6:19 AM
To: COG List
Subject: [canberrabirds] Black Falcon

As well as the Goorooyaroo bird reported to Birdline a Black Falcon was seen on Plains rd Hoskinstown yesterday morning.  This bird has been seen several times by various observers over the past few months so it seems to have taken up residence in the area.  As there is about 35km in a straight line between the two sites  there must surely be two birds. 

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