Bird City in Arc Raiders isn’t a separate “arc” with its own release date, but a map modifier/event that arrived with the Headwinds update in late January 2026. It is already live and rotates several times per day rather than being a one‑time launch.

When is Bird City?

  • Bird City came with the Headwinds update, which rolled out on January 27, 2026 on all platforms.
  • It appears as a minor map condition for Buried City (not a standalone node), so you access it by matchmaking into Buried City while the modifier is active.

How the Bird City event works

  • Bird City is a timed event that activates every eight hours and lasts for one hour at a time.
  • During that window, Buried City is full of birds, extra ziplines, and chimney nests that you can loot for trinkets and special items like rubber ducks.
  • It’s designed as a high‑loot window: more vertical movement, more sound traps (birds), and significantly boosted trinket drops from rooftops/chimneys.

Quick timezone example (from published schedule)

These are the recurring Bird City windows by region (they repeat daily):

  • Pacific: 12–1 am, 8–9 am, 4–5 pm PST
  • Eastern: 3–4 am, 11–12 pm, 7–8 pm EST
  • UK: 8–9 am, 4–5 pm, 12–1 am GMT
  • Europe: 9–10 am, 5–6 pm, 1–2 am CET
  • Australia (AEDT): 7–8 pm, 3–4 am, 11–12 pm
  • New Zealand (NZDT): 9–10 pm, 5–7 am, 1–2 pm

TL;DR

  • Bird City is already out as part of the Headwinds update (January 27, 2026).
  • You catch it in rotating one‑hour windows on the Buried City map, three times a day in your timezone.

Information gathered from public forums or data available on the internet and portrayed here.