Birding in October — twitching season at full intensity

The rarest birds of the year arrive now. West coasts get Atlantic vagrants from North America; east coasts and Northern Isles get Siberian extreme rarities. Drop your plans and watch the wind charts.

What's around in October

Atlantic vagrants — west coast

After Atlantic depressions or hurricane remnants, North American birds get blown across to the Western Approaches. The Isles of Scilly, west Cornwall (Hayle Estuary, Drift Reservoir, Sennen Cove), and the west coasts of Ireland (Cape Clear, Loop Head) clean up. Targets:

• Buff-breasted Sandpiper — almost expected on Scilly's airfield. Beautiful plumage.
• American Golden Plover, Pectoral Sandpiper, White-rumped Sandpiper, Lesser Yellowlegs — turn up annually.
• American passerines — Red-eyed Vireo, occasional Blackpoll Warbler, sometimes warblers from impossibly far south.

Siberian arrivals — east coast & isles

Eastern winds across Northern Europe sweep continental and Asian vagrants westward. By mid-October the catalogue is wild:

• Yellow-browed Warbler — annually in hundreds; reliable on east coasts.
• Pallas's Warbler, Radde's Warbler, Dusky Warbler — properly rare but findable.
• Olive-backed Pipit, Pechora Pipit, Lanceolated Warbler, Pallas's Grasshopper Warbler — Shetland specials.
• Eyebrowed Thrush, Siberian Rubythroat — once-in-a-decade megas, but October is when they happen.

Visible migration spectacle

For the cost of nothing, sit on any clear-sky east-coast or south-coast morning. By 7-9am you'll see:

• Mass Redwing + Fieldfare arrivals from Scandinavia.
• Big Goldcrest falls — sometimes a single bush holds 30 of them.
• Brambling coming through with chaffinch flocks.
• Skylark, Meadow Pipit, Linnet, Siskin visible-mig overhead.

Wildfowl arrival

October sees the goose and swan arrival ramp up. Pink-footed Geese hit Norfolk in tens of thousands. Whooper Swans reach Slimbridge and Caerlaverock. Bewick's Swans arrive late October.

Where to go in October

• Isles of Scilly — book accommodation and the boat early. The classic October week is the British twitching pilgrimage.
• Shetland — Lerwick + Sumburgh + Norwick (Unst). Stay in the South Mainland for the best rarity-coverage.
• Fair Isle — limited beds, prime real estate. Book a year ahead.
• East-coast headlands — Spurn, Flamborough, Filey, Bridlington, Norfolk coast.
• West-Wales / Cape Clear (Ireland) for transatlantic birds.

October tips

• Subscribe to RBA / Birdguides. Megas this month don't wait — minutes can matter.
• Have a "drop tools" plan. If a Siberian Rubythroat appears at Filey on a Saturday morning, can you be there by Sunday lunchtime?
• Respect twitch etiquette — quiet voices, no flushing, follow the finder's directions, donate to local nature reserves.
• Pack for cold and wet. Northern Isles weather can swing from sun to horizontal sleet in 30 minutes.