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In fact, the similarity of the Anthracite to the English Grey is striking. The description is virtually identical, and the cobalt appearance of a Skyblue with a single Anthracite factor is exactly what was suspected for the English Grey. The interaction of the Anthracite and Dark budgerigar mutations has not yet been investigated. It is ...
The English Fallow is an autosomal mutation causing recessive changes to the form of the melanin pigment. There is no universally accepted genetic symbol for either the locus or mutant allele, so the simple symbol fe + will be adopted here for the wild-type allele at this locus, and the symbol fe for the English Fallow mutant allele, in keeping ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 28 February 2025. Small, long-tailed, seed-eating parakeet Budgerigar Temporal range: Pliocene–Holocene PreꞒ Ꞓ O S D C P T J K Pg N Blue cere indicates male Flaking brown cere indicates female in breeding condition Conservation status Least Concern (IUCN 3.1) Scientific classification Domain ...
Many isolated appearances of pied or variegated budgerigars were reported in Britain, in continental Europe and in Australia in the late 1920s and early 1930s, [4] but reliable reports of breeding results and detailed descriptions of their appearance during that period are rare.
The genetics of the several Yellowface mutations and their relation to the Blue mutation are not yet fully and definitively understood. [4] [5]Much confusion and misunderstanding have arisen because the popular names given to these mutations are misleading.
The history of the English Grey begins in 1933, when Mr T Watson of Bedford, England, discovered and purchased a hen of a slatey grey colour from a dealer.This may or may not have been an English Grey, as Mr Watson failed to establish the strain, but his report in 1935 [3] of the bird's existence prompted both Mr E W Brooks of Mitcham, Surrey to report his breeding of Greys from two Cobalts in ...
A domestic half-sider budgerigar. A half-sider budgerigar is an unusual congenital condition that causes a budgerigar to display one color on one side of its body and a different color on the other.
There is no universally accepted genetic symbol for either the locus or mutant allele, so the simple symbol r + for 'recessive' will be adopted here for the wild-type allele at this locus, and the symbol r for the Recessive Pied mutant allele, in keeping with the symbol used by Taylor and Warner [8] and Martin.