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← Rouen – Non-Industrial LibraryConservation Legacy original · Breed-specific · Animal identity

Reading identity and evidence carefully

Knowledge for understanding and preserving Rouen – Non-Industrial.

Rouen – Non-Industrial1 minute readSources reviewed October 4, 2026
Historical illustration of Rouen ducks in Mrs Beeton's Book of Household Management (1861). It illustrates the breed's historical appearance and does not certify the lineage or production type of a modern flock.
Historical illustration of Rouen ducks in Mrs Beeton's Book of Household Management (1861). It illustrates the breed's historical appearance and does not certify the lineage or production type of a modern flock. Unknown artist / Mrs Beeton's Book of Household Management, 1861 · Public domain · License terms

Mallard-like colors are a comparison with ancestry and appearance, not evidence that a large domestic Rouen is a wild Mallard. The bird's substantial outline demonstrates the effects of human selection. Weight figures require the same care: mature exhibition weight, market weight, and observations from different production types should not be blended into a single statistic.

Evidence & further reading

Sources behind this article

This is original Conservation Legacy teaching informed by the sources below. Follow the official material for the full account and its context.

  1. The Livestock Conservancy: Rouen – Non-Industrial ↗