04/10/2026 at 20:11:35

4.95s · 92 min after sunset · Warleigh Nature Reserve, River Avon, near Bath

What was detected

Soprano pipistrelle (Pipistrellus pygmaeus) · 30 calls · 54.6 kHz · strongest 0.832
Nathusius' pipistrelle (Pipistrellus nathusii) · 4 calls · 40.9 kHz · strongest 0.602
Long-eared bat · closest match Plecotus austriacus of 2 · 3 calls · 16.5 kHz · strongest 0.384
Measured 16.5 kHz is far outside the expected range for this label. Flagged for review rather than corrected: this measurement is not precise enough to name an alternative. This is a protected species, so the claim is held back.
Noctule, Leisler's or serotine · closest match Nyctalus noctula of 3 · 2 calls · 21.4 kHz · strongest 0.362
Long-eared bat · closest match Plecotus auritus of 2 · 2 calls · 16.9 kHz · strongest 0.315
Measured 16.9 kHz is far outside the expected range for this label. Flagged for review rather than corrected: this measurement is not precise enough to name an alternative.

All 3 classifiers agree.

All 43 detections

Time	Label	Band	Detection
`0.10s`	Pipistrellus pygmaeus	53 to 58 kHz	0.544
`0.37s`	Pipistrellus pygmaeus	53 to 61 kHz	0.76
`0.42s`	Plecotus austriacus	16 to 38 kHz	0.548
`0.50s`	Pipistrellus pygmaeus	53 to 66 kHz	0.718
`0.67s`	Pipistrellus pygmaeus	53 to 68 kHz	0.759
`0.84s`	Pipistrellus pygmaeus	54 to 66 kHz	0.795
`1.10s`	Pipistrellus pygmaeus	54 to 65 kHz	0.757
`1.14s`	Plecotus austriacus	16 to 41 kHz	0.613
`1.16s`	Nyctalus noctula	19 to 34 kHz	0.508
`1.16s`	Pipistrellus nathusii	38 to 50 kHz	0.515
`1.21s`	Pipistrellus pygmaeus	53 to 71 kHz	0.776
`1.29s`	Pipistrellus pygmaeus	53 to 74 kHz	0.783
`1.45s`	Pipistrellus pygmaeus	53 to 70 kHz	0.761
`1.61s`	Pipistrellus pygmaeus	53 to 67 kHz	0.786
`1.71s`	Pipistrellus pygmaeus	54 to 68 kHz	0.767
`1.75s`	Plecotus auritus	15 to 43 kHz	0.559
`1.77s`	Nyctalus noctula	19 to 34 kHz	0.522
`1.77s`	Pipistrellus nathusii	40 to 55 kHz	0.599
`1.83s`	Pipistrellus pygmaeus	52 to 75 kHz	0.779
`1.99s`	Pipistrellus pygmaeus	53 to 76 kHz	0.751
`2.25s`	Pipistrellus pygmaeus	53 to 83 kHz	0.736
`2.35s`	Pipistrellus pygmaeus	54 to 79 kHz	0.78
`2.38s`	Plecotus auritus	15 to 42 kHz	0.569
`2.41s`	Pipistrellus nathusii	40 to 54 kHz	0.617
`2.46s`	Pipistrellus pygmaeus	53 to 82 kHz	0.827
`2.55s`	Pipistrellus pygmaeus	54 to 86 kHz	0.8
`2.80s`	Pipistrellus pygmaeus	53 to 83 kHz	0.825
`2.90s`	Pipistrellus pygmaeus	54 to 74 kHz	0.796
`3.02s`	Pipistrellus pygmaeus	53 to 74 kHz	0.743
`3.25s`	Pipistrellus pygmaeus	53 to 82 kHz	0.811
`3.34s`	Pipistrellus pygmaeus	53 to 90 kHz	0.836
`3.42s`	Pipistrellus pygmaeus	54 to 89 kHz	0.801
`3.51s`	Pipistrellus pygmaeus	53 to 89 kHz	0.782
`3.77s`	Pipistrellus pygmaeus	54 to 74 kHz	0.593
`3.87s`	Pipistrellus pygmaeus	56 to 67 kHz	0.525
`4.12s`	Pipistrellus pygmaeus	54 to 82 kHz	0.746
`4.20s`	Pipistrellus pygmaeus	56 to 78 kHz	0.758
`4.24s`	Plecotus austriacus	16 to 39 kHz	0.51
`4.26s`	Pipistrellus nathusii	39 to 54 kHz	0.511
`4.31s`	Pipistrellus pygmaeus	54 to 86 kHz	0.785
`4.38s`	Pipistrellus pygmaeus	55 to 80 kHz	0.766
`4.63s`	Pipistrellus pygmaeus	54 to 70 kHz	0.727
`4.89s`	Rhinolophus hipposideros	93 to 109 kHz	0.51