Birdwatching at Hilbre Island

What you can see through the year

• Winter waders: the council names knot, dunlin, redshank, turnstone, sanderling and oystercatcher as the commonest roosting waders. The Hilbre Bird Observatory counted about 12,000 oystercatchers on 31 January 2026.
• Purple sandpipers: unlike most waders, they feed on invertebrates among the seaweed-covered rocks around the islands, according to the council.
• Brent geese: the Observatory recorded 308 on 17 October 2026 and 318 on 19 October 2026, and pale-bellied birds were still present in March 2026.
• Migrants: the council calls the islands a staging post for migrating perching birds in spring and autumn. On 17 October 2026 the Observatory logged 92 skylarks.
• Seawatching: the Observatory logged 131 Leach's petrels on 20 September 2026 and 34 on 16 September 2025, with Manx shearwaters, skuas, gannets and kittiwakes. Strong westerly winds give the best seawatching.
• Terns: about 350 Sandwich terns passed on 26 and 28 April 2026, and 650 on 26 August 2026.

The Hilbre Bird Observatory

Wirral Council says the Observatory was formed in 1957 and is accredited by the Bird Observatories Council. It takes a daily census and rings birds under licence, about 1,000 a year. The council counts 223 species recorded on the islands.

The Observatory publishes its daily records on its blog. For the monthly picture, see the wildlife calendar and Hilbre wildlife. The council says the public are welcome to visit observatories by appointment, so ask the rangers at wcp@wirral.gov.uk before you go.

Where to watch without disturbing roosts

• Little Eye and Middle Eye are the main wader roost sites. Keep to the established paths, stay back and use binoculars rather than approaching.
• Never walk through a roosting flock. The council warns that disturbing roosting birds drains their energy and reduces their chance of surviving the winter.
• Watch the shore and the sea from the paths on Hilbre. Do not put up a hide or tent: the byelaws prohibit erecting a hide or other structure.
• On the mainland, the Observatory blog recorded 14 goosanders and 3 red-breasted mergansers on West Kirby marine lake on 20 October 2026.

The timing problem

Roosts are most important on high spring tides and in storms, when the beach and saltmarsh are covered. That is also when the route is under water. WalkHilbre's calculated window opens 3 hours after high water and closes 3½ hours before the next high water. The close is the latest time to be back on the mainland at Dee Lane. Start back from Hilbre by the calculated leave-by time, 60 minutes before that.

In practice a crossing within the window mostly shows birds feeding along the shore and passing offshore rather than the roost at its peak. Never wait out on the sands to see one. The tide can cover the route behind you. Do not walk to the islands in the dark or fog, and be off the islands by 8pm. An estimate — not permission to cross. Check the Dee Lane noticeboard before setting out.

Protection and good manners

The Dee Estuary is a Site of Special Scientific Interest, a Special Protection Area, a Special Area of Conservation and a Ramsar site, mainly for its wintering waders and wildfowl and as a staging post for migrating birds.

The reserve byelaws prohibit intentionally disturbing any living creature. Keep dogs on a short lead, as Wirral Council requires; see Hilbre Island with dogs. Take litter home, and keep drones away from birds (see photography and drones).

Questions