Population stats & trends
Total sightings 96
Individuals seen 16
Years of data 2020–2026
Most active month overall: Jul (25)
Sightings per year
Distinct individuals seen per year
New individuals first recorded per year (catalog growth)
Seasonal pattern — when adders are seen overall, all years combined
Who was around when
Each row is one adder — the line is its known active span, round dots are sightings, purple diamonds are life events. Tap any marker for details. Zoom with ＋/－ then scroll sideways; amber bands mark the active season (spring–autumn), cool bands the winter.
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2020
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