Winter flocking in bowerbirds

To: COG bird list <>
Subject: Winter flocking in bowerbirds
From: Anthony Overs via Canberrabirds <>
Date: Tue, 2 Aug 2022 13:15:36 +0000
Just reading through the August gang-gang newsletter and Jack Holland’s column 
(which is always excellent). Jack mentions observations by Jenny Bounds and 
himself regarding increased numbers of bowerbirds in winter. There was a brief 
exchange about this on this chatline on 18 August last year, with observations 
from Jean Casburn, Paul Gatenby, Tony Lawson, and myself.

When I’ve talked about this phenomenon, I like to mention the data from the 
original breeding bird study completed by Stephen Marchant at Moruya. On a ten 
hectare block of forest there was one territory occupied by a blue male. 
Stephen made an effort to band all bowerbirds one winter, ending up with 187 
birds banded. That’s a huge number of birds passing through. The vast majority 
of those were never encountered again. 

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