Butterfly First Sightings : White-letter Hairstreak

This page shows the earliest sightings of the White-letter Hairstreak 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 June. The "+- days" column shows the difference from the mean.
Date Recorder Location +- days
17-Jun-2024 Adrian Cadman Great Linford, Bucks -2 days
21-Jun-2023 Tom Dunbar Aylesbury, Bucks +1 day
14-Jun-2022 Peter Cuss Chazey Heath, Oxon -6 days
23-Jun-2021 Adrian Cadman Milton Keynes, Bucks +3 days
07-Jun-2020 Peter Cuss Chazey Heath, Oxon -12 days
15-Jun-2019 Peter Cuss Chazey Heath, Oxon -5 days
10-Jun-2018 Adrian Cadman Milton Keynes, Bucks -10 days
10-Jun-2017 Adrian Cadman Milton Keynes, Bucks -10 days
26-Jun-2016 Peter Cuss Chazey Heath, Oxon +7 days
24-Jun-2015 Adrian Cadman Milton Keynes, Bucks +4 days
21-Jun-2014 Adrian Cadman Milton Keynes, Bucks +1 day
07-Jul-2013 Adrian Cadman Milton Keynes, Bucks +17 days
10-Jul-2012 Adrian Cadman Milton Keynes, Bucks +21 days
09-Jun-2011 Mick & Wendy Campbell Piddington Wood, Oxon -11 days
24-Jun-2010 Nigel Parsons Iver Heath, Bucks +4 days
28-Jun-2009 Dave Wilton Westcott, Bucks +8 days
17-Jun-2008 Dave Wilton Westcott, Bucks -2 days
23-Jun-2007 Dave Wilton Westcott, Bucks +3 days
15-Jun-2006 John Notton Bucks -5 days
22-Jun-2005 Dave Wilton Wendlebury, Bucks +2 days
19-Jun-2004 Dave Wilton Finemere Wood, Bucks 0 days