Anthracite Budgerigar Mutation, Complete German Origin Genetics Guide

A German-origin autosomal incompletely dominant budgerigar mutation that darkens the entire body uniformly. SF Anthracite produces a medium grey bird. DF Anthracite is nearly black. Distinct from Manto Negro (Brazilian, also dominant) which concentrates pigment in the head and mantle rather than uniformly across the body. Stable Anthracite lines appeared in German aviaries in 1998.

Written by Ayaan Shohan

Founder, KinBird Aviary · Bangladesh

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What Anthracite looks like

An Anthracite budgerigar has a darkened body color compared to a Normal bird of the same base. The darkening is uniform across the entire body — head, chest, abdomen, and back all show the same degree of pigmentation increase.

SF Anthracite produces a medium grey body. The wing markings remain visible but are slightly muted by the increased body pigmentation. The overall impression is of a Normal bird that has been darkened uniformly.

DF Anthracite produces a near-black body. The wing markings can be hard to see against the dark background. The overall impression is of a dramatically dark bird, distinct from any Normal phenotype.

On blue-series Anthracite birds, the underlying blue contributes to the dark grey appearance. On green-series Anthracite birds, the underlying green plus the increased melanin produces a deep olive-grey-green coloration.

How Anthracite inheritance works

Anthracite is autosomal incompletely dominant. The gene sits on an autosome (not the Z chromosome), so it inherits identically in cocks and hens. A bird can be Normal (no Anthracite allele), Single Factor or SF (one copy), or Double Factor or DF (two copies).

SF expression produces medium grey. DF expression produces near-black. The visual difference between SF and DF is dramatic and easily distinguishable by eye.

SF Anthracite × SF Anthracite produces the textbook 1:2:1 Mendelian ratio: 25% Normal, 50% SF Anthracite, 25% DF Anthracite offspring.

DF Anthracite × Normal produces 100% SF Anthracite offspring (every chick inherits one Anthracite allele from the DF parent and zero from the Normal parent).

DF Anthracite × DF Anthracite produces 100% DF Anthracite offspring.

History and origin

Anthracite stabilized in German aviaries in 1998. The mutation appeared sporadically in earlier German lines but was not consistently bred until the late 1990s. By 2000 stable Anthracite lines existed across European exhibition programs.

The mutation entered British and Australian lines during the 2000s and is now established globally. Modern WBO exhibition standards recognize Anthracite as a distinct mutation class, with SF and DF typically judged together as Anthracite.

Anthracite vs Manto Negro, the German vs Brazilian dominant blacks

Both Anthracite (German 1998) and Manto Negro (Brazilian 2021) are autosomal incompletely dominant mutations that produce dark birds. Both can be confused at first glance. The distinguishing feature is pigment distribution.

Anthracite darkens the entire body uniformly. Head, chest, belly, back all show the same degree of darkening. SF Anthracite is medium grey overall; DF Anthracite is near-black overall.

Manto Negro concentrates extra eumelanin on the head, nape, and mantle (upper back and shoulder area). The lower body remains comparatively lighter, retaining most of the original base coloration. Visual signature is the contrast between dark upper body and lighter lower body.

Both inherit identically (autosomal incompletely dominant) with the same SF and DF Mendelian ratios. The only test that distinguishes them is the visual pattern of pigment distribution. The Budgerigar Genetics Calculator handles them as separate mutations with separate IDs and never confuses them.

See our Mutation Comparison Guide for the full Anthracite vs Manto Negro side-by-side analysis.

Anthracite combinations with other mutations

Anthracite combines with most other budgerigar mutations.

Anthracite Cobalt produces a very dark blue-grey body with Cobalt's dark factor contribution.

Anthracite Mauve produces an extreme dark almost-black bird (Mauve plus Anthracite stacks both pigment-increasing effects).

Anthracite Opaline combines the wing-reversal pattern with the darkened body.

Anthracite Cinnamon — brown wing markings on a darkened body, soft contrast.

Anthracite Spangle SF — reverse wing markings on a darkened body.

Anthracite Black Face combines the heavy facial mask with the uniform body darkening. Extremely rare combination, mostly theoretical.

Pairing predictions

SF Anthracite × Normal produces 50% SF Anthracite offspring and 50% Normal offspring.

DF Anthracite × Normal produces 100% SF Anthracite offspring (no Normal, no DF).

SF Anthracite × SF Anthracite produces the 1:2:1 ratio — 25% Normal, 50% SF Anthracite, 25% DF Anthracite offspring.

DF Anthracite × SF Anthracite produces 50% SF Anthracite + 50% DF Anthracite offspring.

DF Anthracite × DF Anthracite produces 100% DF Anthracite offspring.

These are the textbook autosomal incompletely dominant Mendelian ratios. The Budgerigar Genetics Calculator handles all Anthracite pairings with proper SF/DF tracking.

Test Anthracite pairings in the calculator

Try SF Anthracite × SF Anthracite at budgerigargenetics.com for the textbook 1:2:1 demonstration.

Try DF Anthracite × Normal to see the 100% SF result.

Try SF Anthracite Cobalt × Sky Blue to see Anthracite combining with dark factor segregation.

Test any pairing at budgerigargenetics.com.

Frequently asked questions about anthracite

What is the Anthracite budgerigar mutation?

Anthracite is an autosomal incompletely dominant budgerigar mutation of German origin (1998) that darkens the entire body uniformly. SF Anthracite produces a medium grey body. DF Anthracite produces a near-black body. The mutation increases eumelanin expression across the whole body — head, chest, abdomen, and back all darken equally.

How is Anthracite different from Manto Negro?

Both are autosomal incompletely dominant mutations producing darker birds. The diagnostic difference is pigment distribution. Anthracite darkens the entire body uniformly. Manto Negro concentrates extra eumelanin on the head, nape, and mantle (upper body) while leaving the lower body comparatively lighter. Anthracite originated in Germany 1998; Manto Negro in Brazil 2021.

What is the difference between SF Anthracite and DF Anthracite?

SF Anthracite (single factor — one Anthracite allele) produces a medium grey body. DF Anthracite (double factor — two Anthracite alleles) produces a near-black body. The SF vs DF visual difference is dramatic and easily distinguishable. SF × SF produces the textbook 1:2:1 ratio with 25% Normal, 50% SF, 25% DF offspring.

What does Anthracite × Anthracite produce?

SF Anthracite × SF Anthracite produces the textbook autosomal incompletely dominant 1:2:1 ratio: 25% Normal, 50% SF Anthracite, 25% DF Anthracite. DF Anthracite × DF Anthracite produces 100% DF Anthracite. DF Anthracite × Normal produces 100% SF Anthracite. The Budgerigar Genetics Calculator handles all Anthracite pairings with proper SF/DF tracking.

Can Anthracite combine with other mutations?

Yes. Anthracite Cobalt produces a very dark blue-grey. Anthracite Mauve is extreme dark. Anthracite Opaline combines wing-reversal with body darkening. Anthracite Cinnamon combines brown wing markings with darkened body. Anthracite Spangle SF combines reverse wing markings with body darkening. The Budgerigar Genetics Calculator handles all combinations.

Is Anthracite popular in exhibition lines?

Yes. Stable Anthracite lines are established in European exhibition aviculture and increasingly worldwide. Modern WBO exhibition standards recognize Anthracite as a distinct mutation class. Anthracite Cobalt and Anthracite Mauve birds in particular have strong exhibition presence due to their dramatic dark appearance.

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