A Guide to
Gouldian Colour Variants
By Graham Tulk
1. Where one head colour is
genetically carrying another head colour in a hidden form, it is called a 2. The Black headed Gouldian has two colour phases, one has a RED tipped beak and the other a YELLOW tipped beak, the RED tip is usually known as the Black headed Gouldian whilst the YELLOW tip is usually written as Black Y.T.B. Genetically they are not the same, and as you will see from the mating tables, give a different set of results. 3. From the table you will see that the pairings 27, 31 and 52 are capable of producing youngsters in all the head colours in both cocks and hens, including the Y.T.B. Blackhead. 4. Yellow headed hens cannot be split for any other head colour and as such are always pure Yellow. 5. Black headed birds when paired together will only produce Black headed offspring, they will be either R.T.B. or Y.T.B. dependant upon the pairing. 6. The Gouldian finch is the only Estrildid to have three naturally occurring colour phases or morphs and this makes it a very interesting subject genetically, now add to these the colour variants that have been developed by bird breeders and you will agree that all the permutations and explanations could fill a book. Perhaps someone will work them all out one day or perhaps someone already has. Please send me a copy! 7. Here is just a basic guide to some of the other colour variants:
8. Colour variant combinations. All the colour variants may be combined in one form or another as the breeder wishes, we at present do not have to take into account any lethal factors, the number of colour combinations seems endless but there are some very nice visual ones along the way. My preferences are the Double factor Yellow, Lilac breasted, Red head cock bird, the Black White breasted Blue variant and the Black headed Purple breasted Silver, but my real favourite is still the Black headed normal. The Silver form is a fine example of colour variant combinations, combining the factors of Blue and Yellow variants to come up with this very subtle variation. Then further along this road we come to the White bird, this then is the "ultimate expression" of the breeders art, the end of the road. To start with all that colour and end up with a blank. Colour variants are an on-going situation, we have had glimpses into the future were some colour variations have surfaced and disappeared again without being established, did have a nest were one of the young had brownish feathers and red eyes, but did not survive, was it a cinnamon? I do have now a Black headed White breasted bird that is Grey instead of blue, but is very reluctant to lay eggs. So is this to be the end of a Grey series of birds before it gets going, I will let you know. The words "colour variant" that I have used throughout this article are my preference to the word "mutation" which is in common usage where Australian Finches are mentioned. My reason for using the term colour variant is that it is a much softer word, it is already in common use in birdkeeping (re British bird fancy) and expresses what we mean in a more definitive way. Mutation to me seems to be much more physical, such as crests, frills, feather footed and other types of deformity, and should we as a society be going down that road? I for one would like to discourage the breeding of birds with any physical irregularity. We already have, so called, Crested Chestnut Breasted Mannikins which in my opinion are hybrids and as such should not be recognised. Can you imagine a "frilled scotch fancy type white Gouldian" or the "Gloster type, double factor, yellow with a red head and a silver crest, that covers its eyes", these may be far fetched but so were Blue and Yellow variants not so many years ago. All these mutations occur naturally and will pop up from time to time, how far should we go? For me colours are enough. |
Head Colour Expectations for
Expressed as a Percentage Cock x Hen.
COCK X HEN |
COCK |
HEN |
1. RED X RED |
50% RED |
50% RED |
2. RED/BLACK X RED |
25% RED. 25% RED/BLACK |
25% RED. 25% BLACK |
3. RED/YELLOW X RED |
25% RED. 25% RED/YELLOW |
25% RED. 25% RED/YELLOW |
4. RED/BLACK & YELLOW X RED |
12.5% RED. 12.5% RED/BLACK. 12.5% RED/YELLOW. 12.5% RED/BLACK & YELLOW |
12.5% RED. 12.5% BLACK. 12.5% RED/YELLOW. 12.5% BLACK/YELLOW |
5. RED X RED/YELLOW |
AS No 3 |
AS No 3 |
6. RED/BLACK X RED/YELLOW |
AS No 4 |
AS No 4 |
7. RED/YELLOW X RED/YELLOW |
12.5% RED. 25% RED/YELLOW. 12.5% YELLOW |
12.5% RED. 25% RED/YELLOW. 12.5% YELLOW |
8. RED/BLACK & YELLOW X RED/YELLOW |
6.25% RED. 6.25% RED/BLACK. 12.5% RED/YELLOW. 12.5% RED/BLACK & YELLOW. 6.25% YELLOW. 6.25% YELLOW/BLACK |
6.25% RED. 6.25% BLACK. 12.5% RED/YELLOW. 12.5% BLACK/YELLOW. 6.25% YELLOW. 6.25% BLACK Y.T.B. |
9. BLACK X BLACK |
50% BLACK |
50% BLACK |
10. BLACK/YELLOW X BLACK |
25% BLACK. 25% BLACK/YELLOW |
25% BLACK. 25% BLACK/YELLOW |
11. BLACK Y.T.B. X BLACK |
50% BLACK/YELLOW |
50% BLACK/YELLOW |
12. BLACK X BLACK/YELLOW |
AS No 10 |
AS No 10 |
13. BLACK/YELLOW X BLACK/YELLOW |
12.5% BLACK. 25% BLACK/YELLOW. 12.5% BLACK Y.T.B. |
12.5% BLACK. 25% BLACK/YELLOW. 12.5% BLACK Y.T.B. |
14. BLACK Y.T.B. X BLACK/YELLOW |
25% BLACK/YELLOW. 25% BLACK Y.T.B. |
25% BLACK/YELLOW. 25% BLACK Y.T.B. |
15. BLACK X BLACK Y.T.B. |
AS No 11 |
AS No 11 |
16. BLACK/YELLOW X BLACK Y.T.B. |
AS No 14 |
AS No 14 |
17. BLACK Y.T.B. X BLACK Y.T.B. |
50% BLACK Y.T.B. |
50% BLACK Y.T.B. |
18. YELLOW X YELLOW |
50% YELLOW |
50% YELLOW |
19. YELLOW/BLACK X YELLOW |
25% YELLOW. 25% YELLOW/BLACK |
25% YELLOW. 25% BLACK Y.T.B. |
20. RED X BLACK |
50% RED/BLACK |
50% RED |
21. RED/BLACK X BLACK |
25% RED/BLACK. 25% BLACK |
25% RED. 25% BLACK |
22. RED/YELLOW X BLACK |
25% RED/BLACK. 25% RED/BLACK & YELLOW |
25% RED. 25% RED/YELLOW |
23. RED/BLACK & YELLOW X BLACK |
12.5% RED/BLACK. 12.5% BLACK/YELLOW. 12.5% RED/BLACK & YELLOW. 12.5% BLACK |
12.5% RED. 12.5% RED/YELLOW. 12.5% BLACK. 12.5% BLACK/YELLOW |
24. RED X BLACK/YELLOW |
AS No 22 |
AS No 22 |
25. RED/BLACK X BLACK/YELLOW |
AS No 23 |
AS No 23 |
26. RED/YELLOW X BLACK/YELLOW |
12.5% RED/BLACK. 25% RED/BLACK & YELLOW. 12.5% BLACK/YELLOW |
12.5% RED. 25% RED/YELLOW. 12.5% YELLOW |
27. RED/BLACK & YELLOW. X BLACK/YELLOW |
6.25% RED/BLACK. 6.25% BLACK. 12.5% RED/BLACK & YELLOW. 12.5% BLACK/YELLOW. 6.25% YELLOW/BLACK. 6.25% BLACK Y.T.B. |
6.25% RED. 6.25% BLACK. 12.5% RED/YELLOW. 12.5% BLACK/YELLOW. 6.25% YELLOW. 6.25% BLACK Y.T.B. |
28. RED X BLACK Y.T.B. |
50% RED/BLACK&YELLOW |
50% RED/YELLOW |
29. RED/BLACK X BLACK Y.T.B. |
25% RED/BLACK&YELLOW. 25%BLACK/YELLOW |
25% RED/YELLOW. 25% BLACK/YELLOW |
30. RED/YELLOW X BLACK Y.T.B. |
25% RED/BLACK & YELLOW. 25% YELLOW/BLACK |
25% RED/YELLOW. 25% YELLOW |
31 RED/BLACK & YELLOW X BLACK Y.T.B. |
12.5% RED/BLACK & YELLOW 12.5% BLACK Y.T.B 12.5% BLACK/YELLOW. 12.5% YELLOW/BLACK |
12.5% RED/YELLOW. 12.5% BLACK/YELLOW. 12.5% YELLOW. 12.5% BLACK Y.T.B. |
32. BLACK X RED |
50% RED/BLACK |
50% BLACK |
33. BLACK/YELLOW X RED |
25% RED/BLACK. 25% RED/BLACK & YELLOW |
25% BLACK. 25% BLACK/YELLOW |
34. BLACK Y.T.B. X RED |
50% RED/BLACK & YELLOW |
50% BLACK/YELLOW |
35. BLACK X RED/YELLOW |
AS No 33 |
AS No 33 |
36. BLACK/YELLOW X RED/YELLOW |
12.5% RED/BLACK. 25% RED/BLACK & YELLOW. 12.5% YELLOW/BLACK |
12.5% BLACK. 25% BLACK/YELLOW. 12.5% BLACK Y.T.B. |
37. BLACK Y.T.B. X RED/YELLOW |
25% RED/BLACK & YELLOW. 25% YELLOW/BLACK |
25% BLACK/YELLOW. 25% BLACK Y.T.B. |
38. RED X YELLOW |
50% RED/YELLOW |
50% RED/YELLOW |
39. RED/BLACK X YELLOW |
25% RED/YELLOW. 25% RED/BLACK & YELLOW |
25% RED/YELLOW. 25% BLACK/YELLOW |
40. RED/YELLOW. X YELLOW |
25% RED/YELLOW. 25% YELLOW |
25% RED/YELLOW. 25% YELLOW |
41. RED/BLACK & YELLOW X YELLOW |
12.5% RED/YELLOW. 12.5% RED/BLACK & YELLOW. 12.5% YELLOW. 12.5% YELLOW/BLACK |
12.5% RED/YELLOW. 12.5% BLACK/YELLOW. 12.5% YELLOW. 12.5% BLACK Y.T.B. |
42. YELLOW X RED |
AS No 38 |
AS No 38 |
43. YELLOW/BLACK X BLACK |
AS No 39 |
AS No 39 |
44. YELLOW X RED/YELLOW |
AS No 40 |
AS No 40 |
45. YELLOW/BLACK X RED/YELLOW |
AS No 41 |
AS No 41 |
46. BLACK X YELLOW |
50% RED/BLACK & YELLOW |
50% BLACK/YELLOW |
47. BLACK/YELLOW X YELLOW |
25% RED/BLACK & YELLOW. 25% YELLOW/BLACK |
25% BLACK/YELLOW. 25% BLACK Y.T.B. |
48. BLACK Y.T.B. X YELLOW |
50% YELLOW/BLACK |
50% BLACK Y.T.B. |
49. YELLOW X BLACK |
50% RED/BLACK & YELLOW |
50% RED/YELLOW |
50. YELLOW/BLACK X BLACK |
25% RED/BLACK &YELLOW. 25% BLACK/YELLOW |
25% RED/YELLOW. 25% BLACK/YELLOW |
51. YELLOW X BLACK/YELLOW |
25% RED/BLACK & YELLOW. 25% YELLOW/BLACK |
25% RED/YELLOW. 25% YELLOW |
52. YELLOW/BLACK X BLACK/YELLOW |
12.5% RED/BLACK & YELLOW. 12.5% BLACK/YELLOW. 12.5% YELLOW/BLACK. 12.5% BLACK Y.T.B. |
12.5% RED/YELLOW. 12.5% BLACK/YELLOW. 12.5% YELLOW. 12.5% BLACK Y.T.B. |
53. YELLOW X BLACK Y.T.B. |
50% YELLOW/BLACK |
50% YELLOW |
54. YELLOW/BLACK X BLACK Y.T.B. |
25% YELLOW/BLACK. 25% BLACK Y.T.B. |
25% YELLOW. 25% BLACK Y.T.B. |
WHITE BREAST SERIES
55. WHITE BREAST X WHITE BREAST |
50% WHITE BREAST |
50% WHITE BREAST |
56. NORMAL/WHITE BREAST X NORMAL/WHITE BREAST |
12.5%
|
12.5%
|
57. WHITE BREAST X NORMAL/WHITE BREAST |
25% NORMAL/WHITE BREAST 25% WHITE BREAST |
25% NORMAL/WHITE BREAST 25% WHITE BREAST |
58. NORMAL/WHITE BREAST X WHITE BREAST |
AS No 56 |
AS No 56 |
59. |
50% NORMAL/WHITE BREAST |
50% NORMAL/WHITE BREAST |
60.
WHITE BREAST X |
AS No 58 |
AS No 58 |
BLUE SERIES
61. BLUE X BLUE |
50% BLUE |
50% BLUE |
62. NORMAL/BLUE X NORMAL/BLUE |
12.5%
|
12.5%
|
63. BLUE X NORMAL/BLUE |
25% NORMAL/BLUE. 25% BLUE |
25% NORMAL/BLUE. 25% BLUE |
64. NORMAL/BLUE X BLUE |
AS No 62 |
AS No 62 |
65. |
50% NORMAL/BLUE |
50% NORMAL/BLUE |
66.
BLUE X |
AS No 64 |
AS No 64 |
YELLOW SERIES: HERE I WILL GIVE ONLY WHAT COLOURS YOU COULD EXPECT FROM GIVEN MATINGS USING THE YELLOW FACTOR
67. |
NORMAL & PASTEL |
NORMAL & YELLOW |
68. PASTEL X YELLOW |
NORMAL PASTEL & YELLOW 1. (FACTOR) |
NORMAL & YELLOW |
69. YELLOW 1. X YELLOW |
PASTEL. YELLOW 1. & YELLOW 2 |
NORMAL & YELLOW |
70. YELLOW 2. X YELLOW |
YELLOW 1. & YELLOW 2. |
YELLOW |
71.
PASTEL X |
NORMAL & PASTEL |
NORMAL & YELLOW |
72.
YELLOW 1. X |
PASTEL & YELLOW 1. |
NORMAL & YELLOW |
73.
YELLOW 2. X |
PASTEL & YELLOW 1. |
NORMAL & YELLOW |