Koel arrives in bottom end of Higgins

[Martin Butterfield via Canberrabirds <>]

I believe there was a view at an early stage of the Koel invasion that Koels were targeting the second broods since the Wattlebirds, having satisfied their biological imperative to reproduce with the first brood, would be less determined to defend the second brood.

Martin Butterfield

http://franmart.blogspot.com.au/

https://mallacootaweatherwildlife.blogspot.com/

On Tue, 7 Nov 2023 at 13:26, Philip Veerman <> wrote:

The suggestion (not new) that their target hosts seem to be breeding earlier each year is interesting. Their target hosts here are Red Wattlebirds, so they could well be starting early, to get their first batch fledged. A change may also be helped by increasing temperature. In other places they have more hosts. However Red Wattlebirds will often have a second brood, so whilst the Koels might not be able to take on the first RW brood, there is still opportunities to get the next one.

 

Philip

 

From: Canberrabirds [ On Behalf Of tlann rail via Canberrabirds
Sent: Tuesday, 7 November, 2023 8:56 AM
To: CanberraBirds email list
Subject: [Canberrabirds] Koel arrives in bottom end of Higgins

 

Heard a male koel calling in Higgins for the first time this spring.  As their target hosts seem to be breeding earlier each year, koel numbers here may decline unless they decide to stay here over winter.

 

Regards.

Tracy.

--
This is the email announcement and discussion list of the Canberra Ornithologists Group.
Emails posted to the list that exceed 2 MB (2,000 kB) in size, including attachments, will be rejected.
All emails distributed via the list are archived at http://bioacoustics.cse.unsw.edu.au/archives/html/canberrabirds. It is a condition of list membership that you agree to your contributions being archived.

Canberrabirds mailing list

https://lists.canberrabirds.org.au/mailman/listinfo/canberrabirds

ATT00001.txt
Description: ATT00001.txt