Little else was known about the 30-40 day moult, until Fretwell spotted large brown smudges in satellite pictures from 2019-2025. They turned out to be mounds of feathers, left in an area called Marie Byrd Land.
然而，儘管評論者一致認為大約一半內容已落實，仍然有一半尚未實現，包括：
，这一点在Line官方版本下载中也有详细论述
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