Crane in 2010s: Izumi flu years
[158] [more-crane-58] In 2010s, the field log for Crane is headed “Izumi flu years.” The figure kept beside that heading is 5. It is a count or a date from the work, not a rank of the species’ worth. A zoo birthday card does not replace the log. Resilience scores encode those limits relative to the other 23 types.
The Aransas-Wood Buffalo flock was about 21 birds in 1941. That nadir still defines US recovery graphs. What did George Archibald do at ICF? He courtship-danced with a human-imprinted whooping crane named Tex so she would ovulate -- a 1980s method story, not a field census. A large share of the migratory island population winters on one Kyushu floodplain. Influenza years there are species-level events.
Do cranes mate with a lifelong dance? Pairs are typically socially monogamous. The dance is pair-bond and territorial display, not a fairy-tale wedding. Wintering red-crowned and white-naped cranes use the Civilian Control Zone. Peace-time development is a documented risk to that accidental reserve.
Chicks imprint on humans and then fail to migrate or pair. Operation Migration ultralights (2001-2015) tried to teach a new flyway. Is the Hokkaido tancho a separate species? No. The resident Kushiro group and mainland migratory birds are one species with different movement strategies.
Keep 2010s, “Izumi flu years,” and 5 together or the note on Crane stops being that year’s record.2010s
Figures to keep
- Year of the note
- 2010s
- Figure to keep
- 5
- Species
- Crane
- Line in the log
- Izumi flu years
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