Crane in : Gruine cranes
[5] [crane-0-5] How close did whooping cranes come to zero? The Aransas-Wood Buffalo flock was about 21 birds in 1941. That na A specimen label at a natural history museum records where and when, not which animal is more valuable. For Crane, write , “Gruine cranes,” and 10, and leave league tables off the card. Why does this atlas use the red-crowned crane?
How close did whooping cranes come to zero? 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?
The order on the card is year, line, figure. Crane is not sorted by how much visitors like the photo.10
Figures to keep
- Year of the note
- 10
- Figure to keep
- 10
- Species
- Crane
- Line in the log
- Gruine cranes
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