To: "birding-aus" <>, "Peter Madvig" <>
Subject: cuckoos
From: "Mike Tarburton" <>
Date: Tue, 3 May 2005 17:41:11 +1000
Dear birders

        Peter said  "BouBou's breed twice a year in my garden, the 1st breeding 
is in early
> September, normally well before the Cuckoos arrive in any force and then
> again in Feb/March when the cuckoo's are around - is this a clever survival
> type strategy????
The Long-tailed Cuckoo's host in New Zealand (Gerygone ignata) usually 
successfully raises one brood prior to the cuckoos arrival from wintering on 
the islands of the South Pacific and so only the second brood is at risk of 
being parasitised.  The system must work as it has been functioning for a long 
time.  The new Zealand bird starts breeding in August a month earlier than the 
South African host.



Dr Mike Tarburton
Dean: School of Science and Technology
Pacific Adventist University
PMB, Boroko
Papua New Guinea

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