
09/13/2025
Orange Breast Mutation (Recessive)
General Characteristics
The Orange Breast mutation transforms most of the typical black markings of the zebra finch—such as the tear mark, chest bar, and tail stripes—into a rich orange color. This gives the bird a distinctly warm and vibrant appearance compared to the normal grey type.
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Male Appearance
In males, the mutation produces several notable changes:
1. The chest bar appears in orange rather than black.
2. A transverse orange band is visible across the tail.
3. The feathers under the wing display orange coloring.
4. The typical black tear mark changes into orange.
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Female Appearance
In females, the mutation expresses differently:
1. The cheek sometimes shows a faint orange tint.
2. Small white spots may appear in the flank stripes.
3. The tear mark is absent.
4. The tail squares show orange markings instead of black.
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Notes on Identification
• Newly fledged Orange Breast chicks resemble normal grey chicks but lack the tear mark.
• As they mature, the orange cheek, chest bar, and flank markings gradually become visible.
• Adult females look similar to normal grey hens but without the tear mark.
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Breeding Considerations
• It is not recommended to combine Orange Breast with mutations that dilute orange (such as Dominant Silver or Lightback), unless paler shades are desired.
• Crossing with Isabel produces attractive white-orange zebra finches.
• When combined with Black Cheek, the orange coloration dominates, producing strong orange tones.
• Mixing with Black Face gives striking results: the black belly area transforms into orange, although the throat will remain striped. To make the entire throat orange, it must be combined with Black Breast.
• A three-way combination (Black Face + Black Breast + Orange Breast) produces a bird without a standardized name, but it is sometimes referred to as:
• Black Face Orange Breast Black Breast
• Black Face Orange Breast Fawn
• Ultimate (Full Orange)
• Triple Orange — a term used in reference to its strong orange expression across three mutations, similar in concept to the “Triple Black.”
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Important Observations
• Females do not need to show an orange cheek to carry the Orange Breast mutation.
• The absence of a tear mark in females does not automatically indicate Orange Breast, as it also appears in other mutations such as Black Breast. Therefore, tail pattern analysis is important for confirmation.