How do cuckoos know they are cuckoos?

To: "'Tony Lawson'" <>, "'COG chatline'" <>
Subject: How do cuckoos know they are cuckoos?
From: "David Rosalky" <>
Date: Wed, 11 Sep 2013 20:59:07 +1000

Nice little story Tony.  Thanks. 


I was surprised to read her statement that there is no scientific evidence that, for certain species (she mentions CBCs, Koels and Cowbirds), the adult birds attend their adopted-out young.  I am sure I have read that there is such evidence (probably Nick Davies’ book on brood parasites).  I have also seen CBCs roosting nearby to a nest in which Magpies were feeding two CBC fledglings.  So displaying apparent interest and also the unusual situation of two in the one nest, presumably laid by the same bird.  I guess a bit anecdotal and I did not see any direct attention being given to the chicks, but I certainly thought that that is the case.


David Rosalky


From: Tony Lawson [
Sent: Wednesday, 11 September 2013 6:52 PM
To: COG chatline
Subject: [canberrabirds] How do cuckoos know they are cuckoos?


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