EMSN

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NL
§ S · Species Bat

Common noctule

Nyctalus noctula
Detections
1,370
Days with detection
82
First
2 April 2026
Highest confidence
100%
§ S · 02 Through the year
Jan
Feb
Mar
Apr
238
May
731
Jun
333
Jul
68
Aug
Sep
Oct
Nov
Dec
§ S · 03 When during the day
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§ S · 05 Sonar properties
Peak frequency
20.9 kHz
average across all passes
Range
15.6 – 34.5 kHz
lowest and highest peak
Duration
0.35 s
average call length
Detector mix
batdetect2532
bavaria838