Butterfly First Sightings : Adonis Blue

This page shows the earliest sightings of the Adonis Blue in the Upper Thames region since 2004 (per UTB Recent Sightings data). The mean first sighting date of this species in the UTB region is 19th May. The "+- days" column shows the difference from the mean.
Date Recorder Location +- days
30-Apr-2025 Peter Cuss Lardon Chase, Berks -19 days
17-May-2024 Mark Jones Lardon Chase, Berks -2 days
21-May-2023 Michael McNeill The Holies, Bucks +2 days
14-May-2022 Michael McNeill The Holies, Berks -5 days
27-May-2021 Michael McNeill Lardon Chase, Berks +8 days
13-May-2020 Michael McNeill The Holies, Berks -6 days
14-May-2019 Michael McNeill The Holies, Berks -5 days
19-May-2018 Jean-Paul Brouard The Holies, Berks 0 days
21-May-2017 Maureen Cross The Holies, Berks +2 days
22-May-2016 Jan Haseler The Holies, Berks +3 days
27-May-2015 Michael McNeill Lardon Chase, Berks +8 days
21-May-2014 Ben Carpenter The Holies, Berks +2 days
01-Jun-2013 Michael McNeill Lardon Chase, Berks +13 days
23-May-2012 Steve Croxford Yoesden Bank, Bucks +4 days
04-May-2011 Ben Carpenter The Holies, Berks -15 days
21-May-2010 Ben Carpenter The Holies, Berks +2 days
23-May-2009 Andrew Bolton Lardon Chase, Berks +4 days
22-May-2008 Mike Wilkins Lardon Chase, Berks +3 days
05-May-2007 Richard Soulsby Lardon Chase, Berks -14 days
20-May-2006 Chris Raper Hartslock, Oxon +1 day
28-May-2005 Maureen Cross Lardon Chase, Berks +9 days
02-Jun-2004 Tom Dunbar Hartslock, Oxon +14 days