All that accepted (which is why I also posted several images to show
different lights and processing) there is one thing that remains
indisputable and useful, -- that the head of the male RR Parrot is
two-tone, the face being more blue than the rest of the
head. Morcombe still clearly misses the point. My
mini-Morcombe shows clearly a uniform head for the male RRP - all the
same shade of yellow-green, and says "Head bright emerald
green...". This seems to be incorrect and disagrees with all
photos and real-life examples I've seen. None of which is really
relevant to John's original obs, but I still find interesting.
Julian
At 09:46 AM 14/12/2007, Geoffrey Dabb wrote:
It might not have done John much
good if he had had his camera with him.
Apart from crude digitizing and compression effects, the colour in most
photos is affected, deliberately or otherwise, by editing. Field
guides and most printed media are very poor at showing colours because of
variations in inks and processing limitations. Some field guide
illustrations are wildly inaccurate. The above are unedited (except
for cropping and saving) examples from the colour guide. The
colours you will see on your monitor, will be different from what I see
on mine. When I hold the colour guide against my monitor I see
different colours again, but then I am using a fluorescent light, a
strong distorter of ?natural? colours, as you will know if you pay
attention to your ?white balance?.
In the panel I sent previously there were various apparent colours
depending on the exposure. The above names for colours have no
particular authority, being taken from names manufacturers gave their
pigments. ?Rufous?, for example, covers a wide range of
colours. That is why HANZAB uses the numeric citation. Even
with that reference and the colour guide you will only see what the
describer saw if you look at the guide with the same light (either
?diffuse natural light? or a ?Phillips 60W Daylight? globe).
Incidentally the only ?turquoise? I can see in a Turquoise Parrot is in
the female (one included in previous panel).
Perhaps the colour John saw was a result of fresh plumage and the quality
of the light (or blue-green can look blue if the bird is on a green
lawn). HANZAB gives as the colour of the male RRP?s forecrown,
lower cheeks etc ?green-blue (c164)?. Bear in mind that under the
HANZAB convention this means more blue than green. (Juvs are duller
with less blue.) For the above reasons there is not much point my
reproducing Colour 164, but, oh well, here it is, photographed in diffuse
natural light:
----Original Message-----
From: John Leonard
Sent: Wednesday, 12 December 2007 3:28 PM
To: Julian Robinson; Canberra Birds
Subject: juvenile RR Parrots
Certainly I don;t think the field guides show enough of the blue
wash
on the face of adult male RRPs, as your excellent photos do. However
my impression was that these juveniles had an even stronger blueish
wash, coupled with the olive-green female/juvenile plumage. It was
quite striking. Pity I didn't have my camera with me!
cheers
John L
__________ NOD32 2721 (20071213) Information __________
This message was checked by NOD32 antivirus system.
http://www.eset.com
|
