Corvid calls

To: "" <>
Subject: Corvid calls
From: Graeme Chapman <>
Date: Tue, 6 Oct 2015 02:15:44 +0000
Hello Ian (Tom) and all,

Your Corvid-Call Quiz is a step in the right direction and good fun but more 
confusing than of help.  All our corvids have a wide repertoire, and it didn't 
compare the equivalent calls of each species.  As you pointed out, it omitted 
the New-England Raven and as you didn't point out, the Australian Raven from 
Western Australia, a very different sounding bird.

Pity you didn't contact me about the quiz, I could have helped as I probably 
have the biggest collection of corvid calls in Australia, including New England 
Ravens. Many of these calls are available on my website but the number I can 
present is limited by space. I am always willing to help anyone interested.

Your comment about being confused by Forest Raven/Little Raven calls in 
southern Victoria is an interesting one. There could be intermediates - nobody 
knows. This is also discussed on my website under the text for Forest Raven.

Little Ravens vary a fair bit in size and also voice. The smaller birds from 
the inland have the highest pitched voices and the bigger birds from alpine 
areas have deeper (sounding more like Forest Raven ) calls. These alpine birds 
do move down to the coastal regions in winter, so in places like Lakes Entrance 
both species can occur, and identifying them by call is tricky to say the least.


Graeme Chapman.
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