OK so info has been returned to me, and might i say im quite happy with what iv learned..
I found out that "tangarine" is prolly not the best way to describe it, but because the colour morph was unable to produce red..
the "tangarine" is not a sub species but rather a mutation. this "tangarine" mutation also include the following species..Orangeface roseicollis, the Yellowface fischeri, the Yellowface Cockatiel and Yellow phase Lorikeets.
"These Sun Conures are Red Suffused birds, equivalent to a Redfronted Turq or Scarlet-chested Parrots. There are strains of this mutation in other species as well, such as Princess parrots".
"This mutation is not produced by simple genetics, but is the result I believe, of tandem repeats in a gene that allows red pigmentation in the particular species. Tandem repeats are repeated segments within genes that amplify its effects and they are now known to be the basis of most selective breeding to 'improve traits'. Through dedicate work, breeders are able to gradually select for an 'improvement' in a trait, in effect selecting for individuals with more and more tandem repeats in their Red Suffusion gene."
the pictures below are diffrent mutations of the species.
turqoise, all yellow, and lutino
http://a3.sphotos.ak.fbcdn.net/hphot..._4096611_n.jpg
http://a3.sphotos.ak.fbcdn.net/hphot..._8187363_n.jpg
http://a5.sphotos.ak.fbcdn.net/hphot..._5524684_n.jpg
Very very special thanks to Monica
Mick, Scott, Terry, Richard and others
for they provided me with this infomation,
http://pets.groups.yahoo.com/group/Genetics-Psittacine/