Between Nov and May, Icelandic Black-tailed Godwits head north. Map shows sites visited by birds that spend time on Ouse Washes.
Shiny App by @amigodeaves.bsky.social complements important new paper about migration hot-spots, as described here:
https://wadertales.wordpress.com/2025/01/09/how-are-migration-sites-connected/
#ornithology