Fw: Fw: Alarm calls

To: Shirley Cook <>, Messages Birding-aus <>
Subject: Fw: Fw: Alarm calls
From: Mick Roderick <>
Date: Mon, 16 Dec 2013 14:49:22 -0800 (PST)
I totally agree with Stephen and have been trying to nut this out at home. Here 
at Shortland (on the edge of Hexham Swamp, Hunter Estuary, NSW) we are blessed 
with a good variety of raptors. I have had 18 species fly over my house during 
the past 12 months (I work from home so spend a lot of time here!). We are also 
"blessed" with an uber-aggressive mob of Noisy Miners (I have seen them 
near-kill a White Ibis and have brought egrets down to the ground). 

As Stephen says, one can tell which type of raptor is approaching by the pitch 
and 'urgency' of the Noisy Miner alarm calls. The most frantic calls occur when 
an Accipiter approaches (less so for a Grey Gos), followed by Hobby, Peregrine 
then maybe other falcons. The Hobby can really get the neighbourhood going 
though and is possibly the only bird that causes every antenna-perched pigeon 
to leave their perches in a panic. You can almost track a Hobby by listening to 
the wave of alarm calls and fleeing birds. 

I was first alerted to this (pardon the pun) by when my first Little Eagle flew 
over the house. The alarm was completely different to any of the others I had 
heard and sure enough, a 'different' raptor appeared. 

They do not bother sounding off at Whistling Kites and only do so at Black 
Kites because they're a rare visitor here.

The alarm for Corvids (there are resident Aussie Ravens and Torresian Crows 
here) is completely different. It's hardly an 'alarm' at all but is that 
relentless 'near near near' that Noisy Miners are famous for. It's probably the 
same for the cuckoos.


On Tuesday, 17 December 2013 9:25 AM, Shirley Cook <> 
DEar all

Here is a very interesting comment from Stephen Debus.

Shirley Cook

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