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Here, we have to deal
with a partial melanin reduction in the plumage. This mutation inherits as
an incomplete dominant character. This means also, that there are no birds
who are split for Edged dilution.
There are penotypical differences amongst
SF and DF birds. Sometimes we see also major differences, in appearance,
amongst mutual SF birds.
SINGLE FACTORED EDGED
-
partial
melanin reduction of 50% on the body and the wings are somewhat darker
-
not all SF
birds are equally marked, it depends on the reduction
-
the cocks
shows usally the best markings, buth there are hens with better
markings than usally
-
the edge of
the feathers of a green bird, keeps their normal green colour, so we
obtain the edged effect
-
when we have
a bird with the best bleaching (40 to 50%), then becomes the centre of the
feathers very light green to almost yellow, a kind of pearled effect
-
in blue birds,
the wing coverts show light grey sports
-
the flight
feathers, the legs and toes are practicaly unaltered
-
the rest of
the body displays an equal bleaching
DOUBLE
FACTORED EDGED
This type of
bird is easally recognized.
GREEN BIRDS
(picture on the left):
-
dirty yellow
birds
-
light grey
flights feathers
-
clear mouldy
colour at the bend of the wings and at the top of the wing coverts
-
the mask has
tendency to become smaler but has to be unaltered with respect to the wild
type
-
colour of the legs ans toes practicaly unaltered
BLUE BIRDS
(picture on the right):
-
very light
blue till very light grey birds
-
white masks
-
mouldy effect
at the top of the wings
-
colour of the legs ans toes practicaly unaltered

© Dirk Van den Abeele
Fischer's Lovebird D green
SF Edged |

© Marilyn Mccall
Fischer's Lovebird Blue
DF Edged (own breeding) |
CONFUSION
WITH PASTEL BIRDS
-
pastel birds
inherits as a recessive character
-
pastel birds
have a dilution of 50% all over the body
-
therefore not
only the body colour is bleached, but also the flight feathers
-
these show
light grey in the best specimens and even white, in the worst specimens
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