These three birds are all Dominant Opal on Blue Bar. Notice the range of Bar coloration from darker, rust colored bars like the bird in the center pic to pure White Bars like the other two pics.
Left and middle pictures courtesy of David Strait
Black Opal German Double Crested Trumpeter
Picture courtesy of Arthur Lofts
Another variation of Black Opal
Picture courtesy of Majestic Loft
T-Pattern Opal Check
This is Opal on Blue T-Pattern Check.
Opal Check Roller
This would be more of a medium colored Opal on Blue Check.
Opal Check Roller
A very nice expression of Opal on Blue Check.
Recessive Red Opal
This bird is actually a Barred bird that Recessive Red is masking. The Opal is so strong that the White Bars show through and give the rest of the bird a Pink color.
Picture courtesy of Outhouse Loft
Opal T-Pattern Roller cock
This bird shows a very nice expression of Dominant Opal on T-Pattern Blue Check.
Picture courtesy of Outhouse Loft
Recessive red Dominant Opal
This bird is pure for Spread. The Opal has given the bird a "washed out" appearance.
Picture courtesy of Outhouse Loft
Ash Red Bar Opal Roller hen
This bird is Dominant Opal on Ash Red (Mealy) Bar.
T-Patter Blue Opal German DC Trumpeter
Notice how it looks similar to some Bronze birds. The lighter tail bar is the distinguishing feature of this Opal.
Picture courtesy of Arthur Lofts
T-Pattern Silver Opal Check German DC Trumpeter
This bird shows a distinct, lighter tail bar which distinguishes it from Spread, or Dun Opal.
Picture courtesy of Arthur Lofts
Another variation of Opal on Blue Check
Picture courtesy of David Strait
Opal on Blue Check
Dominant Opal on Blue Bar
These are often referred to as White Bars. Dominant Opals mated to Dominant Opals create a semi-lethal gene in which most of the young, Homozygous cock birds will die very young if they hatch at all. However, from a mating like this, it seems that the two birds will "bleach out" bars and checks, making Whiter Bars and Checks.
Indigo Opal Roller
Even with the darker, characteristic colored Indigo head, the Dominant Opal lightens the rest of the bird.
Silver Opal Check Giant Homer
This bird is a combination of Dilute and Dominant Opal on Blue Check.
Picture courtesy of Jim Hang
Ash Red Opal Check cock
Picture courtesy of
Steve Caesar
Ash Red Opal Roller
Picture courtesy of Tony Roberts
Dominant Opal hen
Not really sure what the Opal is with here. The bird is a hen and is out of a Dominant Opal Blue Bar cock split for Brown and a Yellow T-Pattern Check Splash hen. The cock could be carrying other factors as well.
Picture courtesy of Steve Caesar
Indigo Opal Check Roller hen
Notice the darker effect the Indigo has on this bird in combination with the Opal. The Opal lightens the Indigo and the Indigo Darkens the Opal to create a beautiful medium shade here.
Homozygous Andalusian Opal Roller hen
The Homozygous part only applies to the Andalusian, the Dominant Opal is Heterozygous in this bird.
Picture courtesy of David Strait
Dominant Opal Bar Tippler
This is a great example picture and case of how to determine the color of a bird. Justin sent me this picture thinking it was Blue bar with some Bronzing. However, notice the lack of a tail bar, or at least the lightening of a tail bar. This indicates Dominant Opal. Blue birds with simple bronzing will show the normal black tail bar.
Picture courtesy of Justin Stair
Night Wolf Loft
Reduced Opal Bokhara Trumpeter
A very attractive combination!!!
Picture courtesy of Zuhair Haji
from the Kingdom of Bahrain
Indigo Opal Bar Roller
Picture courtesy of Steve Shaw
Dominant Opal Saddle Indian Fantail
Picture courtesy of Steve Shaw
Dominant Opal Reduced Bar Roller
This is truly a beautiful expression of the combination of these two genes. All above pictures are of the same bird.
Picture courtesy of Justin Stair -- Night Wolf Loft
Reduced Opal Bar Roller
Another beautiful expression of Reduced and Dominant Opal on Blue bar. This bird is related to the other bird in the pictures above.
Picture courtesy of Justin Stair -- Night Wolf Loft
Indigo Opal Check Indian Fantail
Picture courtesy of Steve Shaw
Dominant Opal Check Indian Fantail
Picture courtesy of Steve Shaw
Dominant Opal Recessive Red Parlor Roller
Picture courtesy of Steve Shaw
Dominant Opal Bar Indian Fantail
This is a great picture showing the light tail bar characteristic of Dominant Opal.
Picture courtesy of Steve Shaw