Neville that is quite correct. But there has been many uses for the same words within the fancy over the past 100 years and it has created a lot of confusion. It seems the show world just loves to pigeon hole each variety yet when it comes to correct scientific nomenclature which for the Yellowfaces is: (b1 - b2 - bayf) they havn't got a clue. So we have to go somewhere inbetween so all peoples can understand. Sometimes the problem is people set in their ways and that information that has been around for 30 years plus just does not get deseminated.

Yes I know I am old and set in my ways but it makes more sense to me to use a term that is understood world wide than to try and change everyone. There have been name changes over the years. The clearwing was always called yellow-wing or white-wing when it first appeared but now it is universally called clearwing. Harlequin is another, it's now referred to as recessive pied. Other changes include "Self", "White" and "Yellow" all now called dilute. Part of the problem is caused by a similar mutation appearing later that fits the description better than the original mutatiion. Using the term "type 2 yellow face" is really just a shorter way of saying "mutant type 2 yellow face". Ideally we should all use the correct scientific nomenclature, but if we did no-one would have a clue what we were talking about.

I agree with you Neville. Its all Potato's and Tomato's...

Hi

 

Is double factor the same thing as 2 dark factors?

Today I was looking at a picture of a dominant pied and it was called a double factor dominant pied, does that mean he had to be mauve or olive (2 dark factors)?

What is double factor and how do you get it.

No they are not the same.

 

The term double factor (df) is referring to the bird carrying two genes for the same mutation.

 

The term Single Factor (sf) is referring to the bird carrying one gene for the same mutation.

 

Dark Factor is an addtional factor that when added to Light Green or Sky Blue produces a Dark Green or Cobalt. When there are two Dark Factors then the birds are Olive and Mauve.

 

Regarding the double factored Dominant Pieds. It cannot be distinguished that just because a bird has minimal pied markings that it is a double factor. Test pairing will provide an answer as will knowing the parentage.

okay so a double factor baby could come from 2 grey green normal parents? What would the chick be? A double factor grey green? Would it look any different to a normal grey green?

 

Thankyou Ripbudgies.

If it was type 2 the yellow would show in the wings and tail even if there wasn't any bleed into the body.

 

Incidentally the word "mutant" could be added to the description of any mutation as any bird that doesn't match the wild type is a mutant

 

okay, so I learned something new it is a YF1 even if it bleeds a little if the wings and tail are not yellow. Yes your right potatoes and tomatoes LOL, I learned most of my stuff here and then reading about and have learned more when you and others have come on to the site to set misinformation straight.