04/10/2026 at 20:20:52

4.95s · 101 min after sunset · Warleigh Nature Reserve, River Avon, near Bath

What was detected

Soprano pipistrelle (Pipistrellus pygmaeus) · 20 calls · 57.6 kHz · strongest 0.826
Nathusius' pipistrelle (Pipistrellus nathusii) · 2 calls · 40.7 kHz · strongest 0.544
Noctule, Leisler's or serotine · closest match Nyctalus noctula of 3 · 1 call · 16.9 kHz · strongest 0.273
Long-eared bat · closest match Plecotus austriacus of 2 · 1 call · 16.9 kHz · strongest 0.352
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. This is a protected species, so the claim is held back.

All 3 classifiers agree.

All 31 detections

Time	Label	Band	Detection
`0.10s`	Nyctalus noctula	16 to 34 kHz	0.573
`0.17s`	Pipistrellus pygmaeus	57 to 67 kHz	0.66
`0.28s`	Pipistrellus pygmaeus	56 to 62 kHz	0.581
`0.45s`	Pipistrellus pygmaeus	57 to 67 kHz	0.628
`0.53s`	Pipistrellus pygmaeus	57 to 74 kHz	0.776
`0.73s`	Pipistrellus pygmaeus	58 to 65 kHz	0.658
`1.05s`	Pipistrellus pygmaeus	57 to 64 kHz	0.65
`2.04s`	Pipistrellus pygmaeus	59 to 69 kHz	0.737
`2.37s`	Pipistrellus pygmaeus	58 to 69 kHz	0.772
`2.45s`	Pipistrellus pygmaeus	59 to 72 kHz	0.775
`2.56s`	Pipistrellus pygmaeus	58 to 67 kHz	0.685
`2.64s`	Pipistrellus pygmaeus	58 to 68 kHz	0.595
`2.84s`	Pipistrellus pygmaeus	58 to 69 kHz	0.739
`3.02s`	Pipistrellus pygmaeus	56 to 61 kHz	0.623
`3.10s`	Pipistrellus pygmaeus	58 to 66 kHz	0.735
`3.33s`	Pipistrellus pygmaeus	57 to 63 kHz	0.601
`3.42s`	Pipistrellus pygmaeus	57 to 72 kHz	0.817
`3.48s`	Pipistrellus nathusii	40 to 47 kHz	0.552
`3.53s`	Pipistrellus pygmaeus	57 to 74 kHz	0.769
`3.62s`	Pipistrellus pygmaeus	57 to 75 kHz	0.803
`3.75s`	Pipistrellus pygmaeus	57 to 78 kHz	0.832
`3.85s`	Pipistrellus pygmaeus	56 to 68 kHz	0.804
`3.89s`	Plecotus austriacus	16 to 42 kHz	0.597
`3.91s`	Pipistrellus nathusii	40 to 48 kHz	0.559
`3.97s`	Pipistrellus pygmaeus	57 to 66 kHz	0.754
`4.07s`	Pipistrellus pygmaeus	56 to 78 kHz	0.831
`4.17s`	Pipistrellus pygmaeus	56 to 66 kHz	0.773
`4.30s`	Pipistrellus pygmaeus	56 to 70 kHz	0.783
`4.44s`	Pipistrellus pygmaeus	56 to 73 kHz	0.767
`4.56s`	Pipistrellus pygmaeus	56 to 75 kHz	0.821
`4.64s`	Pipistrellus pygmaeus	56 to 62 kHz	0.619