Butterfly First Sightings in 2026 (species this year: 2)

This page shows the earliest sightings of butterflies in the Upper Thames region (per UTB Sightings). The "+- days" column shows the difference from the mean first sighting date in the UTB region since 2004.
# Species Date Recorder Location +- days
2 Red Admiral 17th January Wendy Tobitt Wallingford, Oxon -5 days
1 Brimstone 3rd January Peter Cuss Warburg Reserve, Oxon -21 days