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SL Dominant Greywing mutations or what some people call (Sex-Linked)SL Dominant Greywing. Lovebirds are recently being hotly discussed, and many photos are circulating on the group's social media.
A few years ago, wicks, a breeder, uploaded for the first time and allegedly still the same As dominant Edge.
Then there are also farmers from Denmark who began uploading photos of breeding products from this bird, and they named it Greywing.
Some time ago, Mutavi updated the color list of new Mutations in a table that you can download as a PDF of documents on their site.
As you can see, this Greywing mutation is officially recognized by Mutavi.
Placed
as a mutation native to the genus Agapornis Fischeri, Greywing is just a bias
we see in Budgie after all these years. Now we can see it on Lovebirds or
Agapornis fischeri.
With the early emergence of Greywing mutations, many people assumed that it was the dominant Edge, so they began to examine some of the dominant advantages and hoped to find a Greywing mutation.
I also did some Dominant Edged I gathered to observe and equate with a photo of Greywing mutations. At first glance, it is identical to SL Dominant Greywing with Dominant Edge.
Especially when Dominant Edged in the view (DF) Double Factor. And usually
females.
We also do not need to be fooled by the appearance of the
combination of Dominant Edge x Pastel,
Birds with such
combinations are also very similar to SL Dominant Greywing if we look at a
glance.
But after I asked a lot and observed directly, there are some differences
between Greywing's dominant SL Mutation and The Dominant Edge.
It
is easy to compare the condition of the Dominant Edge (SF) Single Factor.
What becomes complicated when we are in dominant Condition Edge (DF) Double
Factor is because these two Mutations are true to resemble both.
For
that, I will reference the difference between SL Dominant Greywing Mutation and Dominant Edge in this article.
The difference between DOminant edge vs Greywing lovebird
Body Color of SL Dominant Greywing
Dominant Edge has the same color reduction all over the body. DF Edged is
very dark yellow.
SL Dominant Greywing is visually a combination of
Edged and Pastel. Therefore, an SL Dominant Greywing does not have the same
color reduction all over the body.
Greywing has a more green look.
Head Color of SL Dominant Greywing
In Fischeri, melanin reduction almost entirely occurs on the dominant edge
head when looking at fellow yellow, so it seems like a DEC or lutino head.
While
in greywing dominant SL, despite my yellow appearance and bright grey primary
feather, the color of their head will still have a crown pattern.
This
occurs because the reduction of melanin between dominant Edge and SL dominant
Greywing differs in levels.
Masked Area of SL Dominant Greywing
In the case of genetics, it also differs mainly in the inheritance model because Dominant Edge is Dominant Incomplete while Greywing is SL(Sex-Linked) Dominant.
SL Greywing – Summary and genetics When breeding SL Greywing, remember that the mutation is "Sex-linked," "Dominant," and "Incomplete."
What does that mean ??
"Sex-linked" mutation is present on a sex
chromosome rather than a non-sex chromosome. The male has 2 gene positions
on his sex chromosome,
If 1 gene position is "Greywing" and the
other gene position is "Green," – then he's an SF Greywing (Single Factor).
However, if both gene positions are "Greywing," he's a DF Greywing (Double Factor). The female has 2 gene positions on her sex chromosome – 1 gene position is always empty.
If this 1 gene position is "Greywing," the other gene position is always empty – then she's an SF Greywing (Single Factor). This means – that a female Greywing can NEVER be a DF Greywing, And a DF male Greywing LOOKS EXACTLY LIKE An SF female Greywing.
"Dominant" – you can always see if a bird has the mutation (no split birds in such a mutation). "Incomplete" - this mutatÃon comes in both SF (Single Factor) and DF (Double Factor).
All this above, in short, "SF Greywing x Green and Green x SF Greywing DO NOT give the same outcome as chicks."
Description of SL Greywing.
Visually, the color on the back and wings of an SF male SL Greywing is a mix of Pastel and Dominant Edged - and this is NOT a combination !!!. One may confuse an SL Greywing with a "bad Edged" – as the "Edged looking pattern" on a Greywing is a little "muddy."
Male DF Greywing Green or female SF SL Greywing green: Color reduction of 70
- 75 % with a distinctly green hue.
The size of the upper rump is
reduced a lot, and the color is "Dilute D blue."It can be confused with DF Edged - but DF Edged is more yellow.
SL Greywing has flight feathers where the inner vane of the primaries
(flight feathers) is grey, and the outer vane has the same color as the body
color of the bird.
Since posting pictures of Greywing, I've
received TONS of questions from other breeders – hoping they had a Greywing
in their aviary.
Believe me – having a bird with a yellowish color on the outer vane and grey
on the inner vane on the primaries does NOT make it a Greywing.
Neither
does a bird with Edged, and Pastel becomes a Greywing. I can easily understand the excitement when an unexpectedly colored chick
hatches into one nestbox.
Not every "funny-looking bird" is a new mutation.
Before shouting
to the world, "I have a new mutation," do yourself a favor and document your
breeding for many years – record the breeding until you have established the
MOI (Mode Of Inheritance).
I had – for many years "some funny-looking birds" – when the MOI was documented, I had a Greywing.
How does SL Greywing breed in combination with a green bird? I use Danish PC
Software called to control my breeding – named ARVEPLAN.
This PC
software is developed by application programmer Per Mosgaard Larsen –
who can be contacted for further information.
This software has a built-in genetic calculator – which I now will use to display various combinations of Greywing and Green.
Here are a few basic ideas on how to recognize a Greywing :
- Female SF Greywing and DF Male Greywing are darker yellow than a DF Edged. A DF-edged is much more yellow.
- A greywing has greyish flight feathers (the inner vane of the primaries (flight feathers) is grey, and the outer vane has the same color as the body color of the bird.
- At a Dominant edge, the flight feathers remain nearly unchanged.
- A greywing has a color reduction of 70 - 75 % with a distinctly green hue. The size of the upper rump is reduced a lot, and the color is "Dilute D blue."
- Visually, the color on the back and wings on an SL Greywing is a mix of Pastel and Dominant Edged - and this is NOT a combination.