In 2013, St Agnes and Gugh began removing invasive rats brought by 18th-century shipwrecks; 12 years later, Manx shearwater breeding sites rose from 22 to a record 225

• According to the Isles of Scilly Wildlife Trust, the rats had arrived on the islands following shipwrecks in the 18th century and had become a threat to birds that nested in burrows, including Manx shearwaters and European storm petrels.
• For this, the Isles of Scilly Seabird Recovery Project was started which brought toget