Analytics & charts

Flyway Bottleneck Telemetry Map

Migration trails over world-atlas geometry; trail colour is protection status at that instant.

heromap

50 kB of self-contained HTML, CSS and JavaScript, with 1 query result baked in at build time. It runs in a sandboxed frame with no cookies, no network identity and no access to this page.

Synthetic dataset generated by scripts/gallery/generators/hero-flyway-bottleneck-telemetry-map.mjs in this repo — seeded and reproducible. No client data.