Hi All
I have a few Channel-bills that have parasitised Currawong nests near my home on the lower north shore of Sydney. Numbers seemed to have increased over the years and they are even now along the Central Coast of NSW in places not previously seen.
This week I can hear adults interacting vocally with fledglings, although I’m never in the right place at the right time to see the interaction. My question is: if a baby bird is known to imprint on its parents, the cuckoo should imprint on the Currawong when it is born, how does this imprint change for fledgling cuckoos so they later identify with adult cuckoos? What are the adult cuckoos doing when they come to visit the fledgling? And finally, why don’t Currawongs identify the cuckoo as an imposter?
Do birds identify with others of their species? The ones in my neighbourhood always tend to stick together, so what is it that allows this switching of identity to happen?
Cheers
Chris
Christine Melrose
cmelrose099@gmail.com
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