While looking for the Giralang Glossy Ibis today, I located two juvenile koels calling from the same tree. They moved separately but followed a similar route to trees near a small fig tree about 100 metres away.
At times both of them were in the fig tree. Their begging calls were given asynchronously. As in the video below, one responded to the call of an adult koel by giving a different call (the same call as in the video). It was not possible to determine how the
other juvenile responded as it was not visible at the time. At least four adult wattlebirds were in attendance. It was not possible to determine which wattlebird fed which juvenile koel but several times a wattlebird would fly past one begging koel to feed
the other one.
Steve
From: Wallaces
[
Sent: Sunday, 22 January 2017 8:28 AM
To: Canberra birds
Subject: Koels in Fraser
At least three koels have fledged on the northern slopes of Mount Rogers this month. While I was filming one of them, an adult male koel called nearby and the juvenile interrupted its begging to give a different call. It did this twice
but when the host returned to feed it the juvenile did not respond to the Koel call. Video linked below.
Steve
http://www.hbw.com/ibc/1326060