We've had both Koel and Channel-billed chicks raised in our garden or our
neighbour's garden in Ryde, NSW in the 14 years that we've been here. My
impression is that both species can raise young in the same neighbourhood each
year, but not necessarily every year. For instance, the Channel-billed Cuckoo
seems to be successful in parasitising a nest in our garden or neighbour's
garden once every 3 years on average. I suppose it comes down to the
availability of nest hosts - if the cuckoos have successfully parasitised nests
one year, then they may need to move to other locations the following year or
two years to allow their local host population to build up again.
Kind regards,
Stephen
Stephen Ambrose
Ryde NSW
-----Original Message-----
From: Birding-Aus On Behalf Of
Penny Brockman
Sent: Tuesday, December 26, 2017 10:12 PM
To:
Subject: Cuckoos
I don't think the Channel-bills have replaced the Koels, just given the latter
something to complain about, which they were doing loudly over the weekend in
Normanhurst as the Channel-bills cackled early morning.
On 23/12/2017 12:45 PM, Brian Fleming wrote:
> Some years ago the ABC did a short report on Channel-billed cuckoos
> spreading into Sydney and displacing the unwanted Currawongs.
>
> Brian Fleming (who HEARD a Koel in an adjoining suburban garden in
> Ivanhoe some years ago).
>
>
> On 23/12/2017 6:08 AM, Geoff Ryan wrote:
>> I know why Judith. All the Koels are here at Yamba NSW but no
>> Channel-billed cuckoos.
>> Geoff
>> <HR>
>> <BR> Birding-Aus mailing list
>> <BR>
>> <BR> To change settings or unsubscribe visit:
>> <BR>
>> http://birding-aus.org/mailman/listinfo/birding-aus_birding-aus.org
>> </HR>
>>
>> ---
>> This email has been checked for viruses by AVG.
>> http://www.avg.com
>>
>
>
> <HR>
> <BR> Birding-Aus mailing list
> <BR>
> <BR> To change settings or unsubscribe visit:
> <BR>
> http://birding-aus.org/mailman/listinfo/birding-aus_birding-aus.org
> </HR>
<HR>
<BR> Birding-Aus mailing list
<BR>
<BR> To change settings or unsubscribe visit:
<BR> http://birding-aus.org/mailman/listinfo/birding-aus_birding-aus.org
</HR>
<HR>
<BR> Birding-Aus mailing list
<BR>
<BR> To change settings or unsubscribe visit:
<BR> http://birding-aus.org/mailman/listinfo/birding-aus_birding-aus.org
</HR>
|
