In light of Timothy Hyde's question if Koels ever lay more than one egg, I
thought I would share the following observation (which really only poses
more questions). This morning at the National Park entrance at Glenbrook
(NSW Blue Mountains) my group and I watched two recently-fledged Koels in
adjacent trees, being fed by two Noisy Friarbirds which appeared to be a
pair. We didn't see any other birds feeding them, although there were
Little Wattlebirds calling nearby. This of course does not prove that the
two Koels came from the same nest - as others have mentioned, it is quite
common for birds other than the host to feed young cuckoos. Perhaps the
real host of one of them got fed up and offloaded it onto the friarbirds!
It's possible that one of the Koels might have been slightly older than the
other. Assuming that they came from different nests, I guess they could
still be siblings.
Cheers
Carol
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