Silent migratories

To: "'Birding Aus'" <>
Subject: Silent migratories
From: "Colin Driscoll" <>
Date: Sun, 11 Mar 2007 10:07:59 +1100

It's easier to know when the migratory birds arrive in spring than to be
sure that they have left for the winter. A few weeks ago the Channel-billed
Cuckoos, Dollarbirds and Koel all fell silent, but were still around. I
think the CBC and Dollarbirds left this week but there was a pair of Koel
around Saturday. Interesting- I guess the hormones have settles down and
they are no longer territorial, so no longer need to advertise.


Colin Driscoll

Location: Bolton Point on western Lake Macquarie.


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