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One Swan Was Counted with More Than 25,000 Feathers

How many feathers does a swan have? A 1937 ornithological note counted 25,216 contour feathers on one Whistling Swan, now known as a Tundra Swan. This is a historical count of one bird, not an exact standard for every swan; it also refers specifically to contour feathers, not necessarily every type of plumage. The illustration is AI-generated.

original AI-generated natural-history illustration of a Tundra Swan on a northern lake. Created 2026-10-13 with the image-generation tool from the prompt: “Create a natural-history editorial illustration of a tundra swan floating on a calm northern lake in soft morning light, with clean realistic plumage and a long neck. The subject is an illustrative swan, not an anatomical feather-count diagram; do not add numbers, annotations, or imply that every swan has an exact feather count. Painterly yet scientifically plausible, field-guide aesthetic, clearly an illustration rather than a photograph, no text, no watermark, horizontal 3:2 composition.” Synthetic illustration; not documentary evidence or a depiction of the individual counted in the study. No third-party license or attribution applies.

original AI-generated natural-history illustration of a Tundra Swan on a northern lake. Created 2026-10-13 with the image-generation tool from the prompt: “Create a natural-history editorial illustration of a tundra swan floating on a calm northern lake in soft morning light, with clean realistic plumage and a long neck. The subject is an illustrative swan, not an anatomical feather-count diagram; do not add numbers, annotations, or imply that every swan has an exact feather count. Painterly yet scientifically plausible, field-guide aesthetic, clearly an illustration rather than a photograph, no text, no watermark, horizontal 3:2 composition.” Synthetic illustration; not documentary evidence or a depiction of the individual counted in the study. No third-party license or attribution applies.