Re: Blue Jay for BFCS

To: "Brian Fleming" <>, <>, <>
Subject: Re: Blue Jay for BFCS
From: "Tim Murphy" <>
Date: Mon, 28 Jun 2004 15:48:38 +1000
I have heard that the red receptor gene is carried on the x chromosome and
that there are at least two different types of red receptor gene. Thus
women, with two x chromosomes, can inherit both types and can sometimes I
believe, see a speckled color looking at an uniform red as the two types of
red receptor genes can express differently in adjacent cones in the eye.
Men, with a single x chromosome, can of course only inherit one type of
gene. See also

Do not despair though - I have much better colour vision than my wife.

Tim Murphy

-----Original Message-----
 Behalf Of Brian Fleming
Sent: Monday, 28 June 2004 3:02 PM
To: ; 
Subject: Re: Blue Jay for BFCS

> X-Sender: 
> From: "Paul Coddington" <>

>Does anyone have any idea why BFCS would be called Blue Jay,
> given that they are not blue, and don't seem to bear any relation
> to jays (Eurasian or North American)?
> Paul Coddington
> Adelaide, South Australia
Names are only labels after all - to quote Dr. Leach of Leach's
'Australian Bird book'
  The adjectives 'blue' and 'red' are often used in a non-literal sense
when naming or describing animals and birds.
 'Blue' is quite often used to indicate a blue-grey colour, as in 'blue
heeler dog', and 'red' quite a dull rufous - just think of the
Red-necked Avocet, and the European Robin Redbreast. I have read many
bird descriptions in which blue and red clearly did not mean anything
like sapphire or vermilion.

 (I have noticed than many male humans have a degree of colour-blindness
or Daltonism - they find distinguishing between different reds as
scarlet, crimson, or flame impossible because all appear as a dull or
muddy rufous).

  Back to the Bifcus (an acronym if you hadn't spotted it)- a
conspicuous bird of a bluish-grey colour which needs a label - Blue to
start with, and Blue-jay was a known combination to the immigrant. It is
no sillier than our Magpies or Robins.

  I refuse to speculate as to why Apostlebirds are known as 'Lousy
Anthea Fleming
in Ivanhoe (Vic)

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