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I have always bred
my Gouldians in larger cages as individual pairs. I have tried breeding
them in larger cages with 2 to 3 pairs, but was not as successful with
that arrangement. Some other breeders have reported great success
breeding Gouldians in colonies. Probably the best arrangement for colony
breeding would be in a larger aviary with four or more pairs. While a
mostly peaceful bird, they can begin to pick on each other to defend
their nest territory.
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Some Gouldian pairs
can be notorious chick tossers. Often incubating well, but then ejecting
the young soon after hatching. It is usually the male that ejects the
young, but not always. I feel that these are mostly young pairs or birds
that are not yet in full breeding condition. I have found that it is a
waste of time to return the chicks (if they are found alive) to the nest
as they will most certainly be ejected again. The young can be fostered
to another pair of Gouldians or Society finches. If possible, try to
pair up an older bird with a younger bird and wait until the birds are
in top breeding condition before providing a nest box. I check the beak
colour of the pair as an indicator of breeding condition. Males should
have pearly white beaks with a red tip and females should have an almost
completely black beak (note: mutations can mask these beak colours).
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Colour Mutations
There are three
naturally occurring colour morphs for head colours that exist in the wild
(Morph is used here instead of mutation because it is a naturally
occurring variation). The Black Headed form being the normal wild state.
The Red Headed variety is dominant to the Black Head morph, but is still
far outnumbered by the Black Head variety in the wild. The Yellow or
Orange Head variety is rarely seen as it is a recessive mutation and
also requires the presence of the Red Headed gene to be visible.
The mutations
developed in aviculture include the White Breast (replaces the normal
purple colour with white), the Yellow-backed (eliminates the blue & black
colour), and the Blue-backed (eliminates the yellow colour). How these
mutation act on the birds and the combinations can be confusing for many
Gouldian breeders.
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Head colour - Black
is the normal state. The Red-headed variety (RH) is sex-linked dominant
morph that can be held as single or double factor in the males, while
females only need inherit one gene from their father to show the red
mask. Males that are single factor RH can produce both BH and RH hens.
Yellow head (or orange as it is really a rust orange colour) is a
recessive morph, but it requires the presence of the RH gene to be
visible. If the bird is a YH (has two genes for YH), but is genetically
Black headed, then the head mask will be black. The tip of the beak will
be yellow rather than red, however. Red head and Black headed birds that
are split for YH show no visible signs of the hidden gene.
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Back colour - The
Blue-backed variety is a recessive mutation. It eliminates the yellow
colour on the Gouldian and alters the colours accordingly. The normally
green back is changed to blue, the yellow belly is changed to a dingy
white and if the bird is either Red or Yellow headed, then this is
changed to a salmon colour. The beak is pearly white without any tip
colour so there is no way to distinguish between RH and YH Blue-backed
birds. The mask looks the same. Only if the genetics are known can you
say for certain. I paired two normal YH Gould's split for Blue-back to
produce true YH Blue-backed birds. These looked identical to other
Blue-backs exhibiting salmon collared heads. Some of which were surely
RHs genetically.
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Yellow-back is a Sex-linked Co-dominant mutation. The mutation works to
suppress the blue and black colour from the bird. The normally green back
is changed to yellow, the black face ring is removed and genetically BH
birds will have a grey face mask. Males that hold the Yellow back gene
in the single factor (only one gene inherited) will have a diluted
appearance. They still have green on their backs, but this is diluted
and the black face ring is eliminated or reduced. There is a twist here,
if a single factor Yellow-backed male is also a White Breasted bird, he
will be visually a Yellow-backed. There is often some flecks of green on
the back, but he certainly is not a dilute. Females cannot be split for
sex-linked mutations so they only need inherit one Yellow-back gene to
be visually Yellow. Therefore, dilute females can never be produced
regardless of the breast colour.
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