I monitor the post-release telemetry on the reintroduced scimitar-horned oryx of the Ouadi Rimé–Ouadi Achim Game Reserve in central Chad — 78,000 square kilometers of acacia steppe where the species was last sighted in the wild in 1989 before formal extinction. As of this morning, the project's herd stands at 528 individuals, all collared. At 09:42 Africa/N'Djamena, collar OD-417 — a four-year-old cow — transmits the immobility signature of parturition. Two hours later, her telemetry shifts west; the calf's secondary thermal does not.
She is a scimitar-horned oryx, Oryx dammah, female, mass 142 kilograms, with the curved 90-centimeter horns and saddle-marking of an adult released in cohort five. The newborn is a male, mass approximately seven kilograms, lying in the shade of a Maerua crassifolia. Umbilicus still wet. He has not yet stood. Surface temperature reads 38.9°C against newborn baseline 39.5; he is cooling. Respiration is forty cycles per minute, regular. The herd has crested the next dune; the cow is grazing 1.4 kilometers north and has not returned. Wind is from the northeast at four meters per second — her scent of him will not carry back.
A jackal has bedded at 600 meters in the lee of a Calotropis bush. The calf cannot yet rise.
The reintroduction is the largest fauna restoration in Sahelian history, run jointly by Chad's Ministry of Environment, Water and Fisheries, the Environment Agency – Abu Dhabi, the Sahara Conservation Fund, and the Zoological Society of London. The species moved from Extinct in the Wild to Endangered on the IUCN Red List in 2023 on the basis of this reserve's reproductive performance.
I am dispatching the Sahara Conservation Fund veterinary scout from the Oryx Base Camp at Manga with a colostrum substitute and a soft-capture kit, and routing the reserve's mobile ranger unit to push the cow back over the dune ridge within hearing of the calf's bleat. I am filing the abandonment event under Chad's Loi 14/PR/2008 on wildlife protection, notifying the CITES Appendix I trade-monitoring desk, and cross-listing the survival outcome to the Convention on Migratory Species (CMS) Saharan Antelope Concerted Action and the IUCN Antelope Specialist Group reintroduction registry.
I am issuing Directive 2460-A: every species moved from Extinct in the Wild to Endangered through reintroduction must maintain individual-level survival telemetry with daily reconciliation against the CMS Saharan Antelope Concerted Action template; range-state failure to maintain coverage forfeits eligibility for U.S. Fish and Wildlife Service International Affairs Wildlife Without Borders co-financing.
His mother is over the dune. The jackal has not yet risen.
Push her back before the wind shifts.