The pairing is:

• Ayam Cemani rooster
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• White Leghorn hen

The appeal comes from the dramatic contrast inherited from both parents:

• dark skin and facial pigmentation from the Ayam Cemani
• light, high-production body type and white feathering from the White Leghorn
• mottled or smoky feathers that can look silver, gray, or “decaying,” leading to the “zombie” nickname

They’re especially popular with backyard poultry keepers because they can combine:

• unusual appearance
• better egg production than pure Ayam Cemani
• lighter body weight and active foraging traits from Leghorns

Appearance varies a lot because it’s a hybrid rather than a stabilized breed. Some chicks hatch nearly black, others mostly white with dark leakage or speckling