Corvid calls

To: Graeme Chapman <>, "" <>
Subject: Corvid calls
From: Kev Lobotomi <>
Date: Tue, 6 Oct 2015 03:06:23 +0000
Hi All
Yes, I think I got the same one wrong. The problem is that the call used I 
believe was from a juvenile bird, & they are a lot more tricky to separate on 
call. They all make a sharper calls when they are juveniles, when I listened 
back after learning of my mistake I could hear that distinctive low, soulless 
growl distinctive of Forest. I am constantly listening out for calls of these 
corvids in Victoria & in the end it's always been one or the other (unless I 
don't get enough on them). I am getting better at picking them out on plumage 
and jizz now too & again it's usually one or the other. I don't there is any 
evidence of intergradation between the species, although it would be a hard 
thing to ascertain without something like DNA.-Kevin Bartram

> From: 
> Date: Tue, 6 Oct 2015 13:15:44 +1100
> To: 
> Subject: [Birding-Aus] Corvid calls
> CC: 
> 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.
> Regards
> Graeme Chapman.
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