Scilly’s Summer Spectacles

Scilly’s Summer Spectacles

Scilly transforms into an otherworldly paradise during the months of summer, making it a great time to experience a variety of interesting wildlife. From blossoming chamomile to migrating shearwaters, there’s always something to observe whether you are walking the coastal paths or travelling by boat.

There’s few plants as recognisable and iconic as the foxglove, crowning fields and woodlands with their purple-pink flowers. Bold and tube-shaped, they can grow up to 2m tall and tower over stone walls and other plants. You won’t miss the spectacle of this flower on Scilly between June and September. They provide an important source of pollen for bees - those dark spots tucked inside the petals are specially adapted to attract species such as the common carder bee. In the past, the leaves of the foxglove have been used to create black dye. A wreath of folklore surrounds this plant, such as the belief that fairies hide inside foxgloves, which stems from the way bees crawl inside the flowers to gather pollen and make it shake like a tiny bell.

Though not as vibrant, rock sea-spurrey is also a common sight in the summer months on Scilly, sprawling along the coastal paths in bursts of pink. These small flowers love salt and thrive on our blustery coastlines. Take a walk around the edge of St Mary’s to spot rock sea spurrey blooming.

Whilst you are exploring the coastal paths, you may spot shags diving offshore in search of food or drying their wings on the rocks, guarding the islands in a timeless display. Summer means many regionally important migrating seabirds visit Scilly to breed and fish. To see species such as Manx shearwaters, storm petrels, razorbills and puffins, it’s necessary to take a scheduled boat trip out to the Norrad Rocks, Annet or the Western Rocks, but by August many seabirds are dispersing.

Bird's-foot trefoil is an attractive sight in summer, growing in stunning displays of golden carpets across the islands. The individual flowers are small and look like tiny slippers with their seed pods appearing like claws or bird feet. This plant also has the common names of ‘eggs and bacon’ (no one knows exactly why!) and, perhaps even worse, ‘granny’s toenails,’ a nod towards the way the seed-pods curl. Bird's-foot trefoil is an important food-source for many caterpillar species.

When summer is at its peak between June and August, the eye-catching emperor dragonfly might be seen zipping across bodies of water in areas such as Higher Moors and Porth Hellick Pool. Although rarely seen away from water, their bright blue colours are hard to miss even when fluttering from place to place. Other dragonfly species such as the large southern hawker, blue-tailed damselfly, and the common darter may also be seen during summer near water and woody areas, fluttering about as they hunt for insects. 

Away from the water, another insect is known to flutter and buzz around in summer - the amazing hummingbird hawk-moth. Moving its wings so fast that it ‘hums’ and using its long tongue to drink nectar from honeysuckle and red valerian, this species of hawk-moth could almost be mistaken for a real hummingbird! Though not strictly a summer spectacle, the hummingbird hawk-moth can be spotted between April all the way until December. We occasionally see other migrant hawk-moth in the autumn on the islands, including convulvulous, death's-head and striped.

Offshore, the summer spectacles don’t stop.  The past few days have been dominated by incredible wildlife spectacle out at sea, with literally thousands and thousands of seabirds recorded in huge flocks, along with feeding frenzies of Atlantic bluefin tuna, hundreds of common dolphins, sunfish, minke whales and fin whales. The star species was the Cory's shearwater, a large shearwater species that breeds on the eastern Atlantic edge. Along with great and sooty shearwaters, they are seen annually from Scilly in varying numbers, but this spectacle was unprecedented, with thousands of birds passing the islands over a couple of days. Wilson's storm petrels are also being reported from pelagic boat trips, along with some 'mega' rarities including a south polar skua (only the second record for Scilly), several reports of Scopoli's shearwaters and a Cuvier's beaked whale! 

Summer on Scilly welcomes a vast array of marine wildlife; rockpools burst into colour as the tide creeps out, filling with starfish, crabs, anemones, fish, sea slugs, and more. In July 2022 a huge amount of violet sea snails washed up on Scilly’s beaches, coming all the way from tropical waters.

Who knows what other rare and amazing sights will appear on Scilly during summer in the coming years?