Common Pipistrelle (Pipistrellus pipistrellus)

Wingspan: 18cm-25cm. Head & Body: 3.3cm-4.8cm. Weight: 4g-7g

Frequency range: 40-83kHz

Peak frequency: 45kHz

Time Expansion: 204K Heterodyne: 45kHz

 

 

 

Soprano Pipistrelle (Pipistrellus pygmaeus)

Wingspan: 18cm-25cm. Head & Body: 3.3cm-4.8cm. Weight: 4g-7g

Frequency range: 47-90kHz

Peak frequency: 55kHz

	Time Expansion: 176K
	Heterodyne: 55 kHz

Nathusius Pipistrelle (Pipistrellus nathusii)

Wingspan: 22-25cm. Head & Body: 4.5cm-5.5cm. Weight: 6g-15g

Frequency range: 34-79kHz

Peak frequency: 40kHz

Time Expansion: 133K Heterodyne: 40kHz

Brown Long-eared (Plecotus auritus)

Wingspan: 23cm-28.5cm. Head & Body: 3.7cm-5.2cm. Weight: 6g-12g

Frequency range: 28-92kHz

Peak frequency:

	Time Expansion: 38K
	Heterodyne: 40kHz

Daubenton's (Myotis daubentonii)

Wingspan: 24cm-27.5cm. Head & Body: 4.5cm-5.5cm. Weight: 6g-12g

Frequency range: 32 - 87 khZ

Peak frequency:

	Time Expansion: 165K
	Heterodyne: 40kHz

Serotine (Eptesicus serotinus)

Wingspan: 32cm-38cm. Head & Body: 58cm-80cm. Weight: 15g-35g

Frequency range: 22-32kHz

Peak frequency:

	Time Expansion: 188K
	Heterodyne: 27kHz

Noctule (Nyctalus noctula)
Wingspan: 33cm-45cm. Head & Body: 6cm-8.2cm. Weight: 18g-40g
Frequency range: 15-52kHz
Peak frequency:
Time Expansion: 486K Heterodyne: 20-23kHz
The Noctule is our largest UK bat

Leisler's (Nyctalus leisleri)

Wingspan: 26cm-32cm. Head & Body: 5cm-7cm. Weight: 12g-20g

Frequency range: 20-61kHz

Peak frequency:

Time Expansion: 23.5 kHz Heterodyne: 23kHz

Natterer's (Myotis nattereri)

Barbastelle (Barbastella barbastellus)

Wingspan: 26cm-29cm. Head & Body: 4cm-5.5cm. Weight: 6g-13g

Frequency range: 28-46kHz

Peak frequency:

Time Expansion: 180K Heterodyne: 35kHz

Detected on Hainault Forest survey with Roger Havard, 2007

Whiskered (Myotis mystacinus)

Wingspan: 19-22cm. Head & Body: 3.5cm-4.8cm. Weight: 4g-8g

Frequency range: 32-89kHz

Peak frequency:

	Time Expansion: 180K
	Heterodyne: to come

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