Swifts, the birds that symbolise summer, travel 20,000 kilometres on their migratory journey to Africa
Swifts, the birds that symbolise summer, travel 20,000 kilometres on their migratory journey to Africa We now know where our common swifts overwinter, this was a great mystery up until just five years ago because we did not have the data that geolocators can now provide. These devices have allowed us to discover much more … Read more