canberrabirds

A suitable topic for Spring

To: Canberrabirds <>
Subject: A suitable topic for Spring
From: Geoffrey Dabb via Canberrabirds <>
Date: Sat, 24 Aug 2024 03:37:49 +0000

Philip correctly raises the issue whether the ‘tail’ of the peacock is really a tail. It seems that what is conventionally called a tail is better referred to as a train, being greatly enlarged upper tail coverts (A in below picture) together with main tail feathers (rectrices  (B in below picture). The best discussion I can find on this is at https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0152759

 

The train is often held erect, near vertical, in a static display before the pre-copulatory train-vibrating display.  From captive ornamental peacocks and their depiction, that static display was familiar to Europeans. This led to misrepresentation of the lyrebird display by illustrators up to the 1932 postage stamp, and beyond. The display plumes of the lyrebird are modified main tail feathers.  In display they are flopped forward or sideways. There is no near-vertical static stage like the peacock’s.  The Crested Pigeon sometimes gives a near-vertical display  using its normal-type tail feathers.

 

 

 

From: Philip Veerman <>
Sent: Thursday, August 15, 2024 12:01 PM
To: 'Geoffrey Dabb' <>
Cc:
Subject: RE: [Canberrabirds] Suggestion department

 

Funny picture and great suggestion. I suspect these are young males, maybe growing their first set of immature train feathers. As I think, if they were adults, the eye spots would be present (I think I only see one). Anyway, it highlights that the so called tail of peacocks is not the tail. This picture features the tail (usually hidden except in this posture), which supports the showy feathers of the rump and lower back.

 

Philip

 

From: Canberrabirds On Behalf Of Geoffrey Dabb via Canberrabirds
Sent: Thursday, 15 August, 2024 9:26 AM
To: Canberrabirds
Subject: [Canberrabirds] Suggestion department

 

From Narrabundah-Griffith Olympic Games Suggestions Committee

 

 

 

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