One last thing I should clarify:
I have Liver sons and daughters, grand sons and grand daughters from my breedings from my Black Male, that also show an amazing quality of nose. So it could be just my lines, or ot could be a result of what my Black male has contributed to them, I dunno scientifally and factually.

Here is just one:

Note the White Pigeon some 80 yards down field I'm flushing.

Jason has been reviewing this and wanted me to post this

http://www.facebook.com/photo.php?pid=1121&id=1769911629&fbid=1002805528307#!/white.shorthair

Ryan,

That is NOT Gelber Brand. Gelber Brand has a very specific Genetic coding  due to the Gene locus  
"A"(agouti) and would be the small "a" with the "t" which is responsible for the tan points found in the Dobe and Rottie.

There are also the Wurtemberg Pointers that would look "similar" to a Shorthair with a Gelber Brand, but are neither Shorthairs, nor is it a Gelber Brand.

I recalled the dog in the pic you posted from another forum and here is what I posted over there concerning this dog of his:

Okay, this is an interesting one. I went back and looked at the info
in Georgina's book and she was quoting Burns (1952) who was using info
from the Danish Stud book about a litter of 11 GSP pups from two
normal colored "brown" parents that produced nine brown pups and 2
that were "cinnamon colored". Burns attributed this to a modifying
gene Z named by Steiger (1936). Willis(1977) mentions but doesn't
name five alleles for color paling in the German Shepherd(okay here we
go again with another breed) thus leading Georgina to the possibility
there may be another gene other than the "C" locus gene that is
responsible for the depth of color in the liver dogs. She then
continues to say that it is worthwhile to point out that a problem
exist(most prefer the darker dogs) and the C" locus gene alleles
provide a possible explanation. Keep in mind she states "possible
explanation".

All of this said I happen to have Dr. Ojvind Winge, a Danish
geneticist book that shows how inheritable factors are passed through
the generations and how they may apparently disappear, only to show up
later....

Anyway from his book, Chapter XXI - Short-haired Bird Dog(the GSP as
we know it) which has great plates that show the various color
combinations and the gene locus. As it pertains to Cinnamon he
attributes it to the Z gene. Following is direct quote from his
book. "Z. Cinnamon colored, "Zimtfarben," intensity factor. Brown
and red dogs that lack Z and therefore have zz receive a light color
than Z-dogs. The eyes are also lighter.'

Also direct quote from his book is the litter referenced by Georgina
which I mentioned above. "Finally, in brown dogs, both a darker brown
and a lighter brown, presumably a recessive shade, are found. The
gene Z, so named by Steiger(1936), is found in nearly all Shorthairs.
If it is lacking and zz occurs, the brown coat is modified to a
cinnamon color. Thus, in the offspring of 90368 Freja of
Helhoejgaard(brown) and 64829 Flok (brown-speckled with brown
markings) nine brown and two cinnamon-colored puppies occurred."


Quite possibly and perhaps apparently, in your pup as well.