Shake your tail-feather

To: "" <>
Subject: Shake your tail-feather
From: John Leonard <>
Date: Sun, 7 May 2017 23:16:45 +0000
I don't know if anyone else has noticed this but in the winters in Canberra I 
observe a behaviour amongst Crimson Rosellas I don't see at other times of year.

At this time the rosellas seem to go around in larger groups, and some of the 
birds (maybe the males) give a cackling call from time to time while they are 
interacting and shake their tails from side to side simultaneously with the 
calls. I haven't seen them do this at other times of the year. Eastern Rosellas 
do the cackling but not the tail shaking.

I haven't noticed that this behaviour coincides with obviously aggressive 
behaviour, but I suppose it has to do with social dominance &c

John Leonard

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