Wall barley
The distinctive spiky, or 'bearded', green flower heads of wall barley appear from June to July and are easy to spot in an urban environment as they push their way up through pavements…
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Invasive Species
Invasive species on Alderney
Notable Species
Notable species on Alderney
Key Habitats and Species
Key Habitats and Species
Key Species: Common Sole
The common sole is a flatfish of ecological and commercial importance and it is one of Alderney’s key species.
Wall brown
The wall brown or 'wall' gets its name from the fact it rests on any bare surface or wall! It can be found in open, sunny places like sand dunes, old quarries, grasslands and railway…
Key species: House Martin
A high flier that visits Alderney in spring and autumn. Discover where and when it can be spotted, and why it is a key species of the island.
Key species: Slow worm
Learn more about this unique species, the only reptile found on Alderney. Despite its misleading name, it’s actually a harmless legless lizard that is often mistaken for a snake because of its…
Key Species: Common Pipistrelle
Learn more about the smallest and most common bat of Alderney
Key species: Northern Gannet
Since the gannets made landfall last week (6 February 2026), we’d love to draw more attention to this charismatic bird of Alderney.
Key species: Egg wrack
This week, we highlight egg wrack, a large brown seaweed on Alderney’s rocky shores.
Parsley fern
Parsley fern lives up to its name - the pale green fronds form in clusters among rocks and look just like parsley. Look out for it in upland areas, particularly in Wales and Cumbria.