The nathusius´ pipistrelle (Pipistrellus nathusii) uses an ultrasonic sound of 37-44 kHz when hunting insects in the dark night. It is listed on the red list as LC (least concern), which corresponds to not threatened.

Nathusius´ pipistrelle in the Sønderborg-area and at the island of Als

The serotine bat (Eptesicus serotinus) lives in buildings, but even though it is listed on the red list as LC (least concern), corresponding to not endangered, it is just like all other bat species completely protected. Mating takes place in the autumn, but fertilization does not take place until around May, after which the female gives birth to a single young after 10-11 weeks of pregnancy.

Serotine bat in the Sønderborg-area and at the island of Als

The noctule bat "smiles" at the photographer and shows its pointed teeth. Bats should not be handled and not at all without work gloves. Although the disease Rabies (dog madness) is not widespread in the Sønderborg area, it cannot be ruled out that migratory species are infected, so if you are bitten - seek medical attention immediately!

The noctule bat is found at several locations in Sønderborg Municipality

The common noctule (Nyctalus noctula) is not only the largest, but also the most common bat species in Denmark. It flies very straight and likes to hunt for insects in the heights at the treetops. On the red list, it is listed as LC (least concern), which corresponds to not threatened.

The common noctule in the Sønderborg-area and at the island of Als

The pond bat (Myotis dasycneme) is registered on the red list as VU (vulnerable). As you can probably deduce from the name, the pond bat hunts over water, where it snatches insects from the surface and with a little luck also small fish.

Pond bat in the Sønderborg-area and at the island of Als

The natterer´s bat (Myotis nattereri) has only been observed in a few places in our area and it is also red-listed as being NT (nearly threatened), which corresponds to almost endangered. It not only catches the prey in the air, but is also able to pick insects directly from leaves, stems and walls.

Natterer´s bat in the Sønderborg-area and at the island of Als

Good places where you can experience bats in the Sønderborg area

The common pipistrelle (Pipistrellus pipistrellus) is confusingly similar to the soprano pipistrelle and it was not until 1999 that they were listed as a separate species. It is red-listed as LC (least concern), which corresponds to not threatened. Its ultrasound scream is at 40-50 kHz, where the soprano pipistrelle's scream is often at 50-60 khz, but overlap makes it difficult to identify individuals.

Common pipistrelle in the Sønderborg-area

The soprano pipistrelle (Pipistrellus pygmæus) likes to fly at low altitudes along forest edges and fences and is probably the most common bat in Denmark. The female gives birth to 1-2 young in the month of July. On the red list, it is listed as LC (least concern), which corresponds to not threatened.

The soprano pipistrelle lives in several places in the Sønderborg area

There are two different types of the mentioned sound programs, "Heterodyne" and "Time Expansion", and where the first results in "click sounds", the second gives rather "whistle sounds". There are examples of both types in the description of the species below.

The bats in the area of Sønderborg all use bio sonar for orientation

The parti-coloured bat (Vespertillion murinus) is red-listed as LC (least concern) and thus not endangered. The female gives birth to twins in June-July and unlike the other European bat species, these females have two pairs of nipples. The male's territory song in the autumn often drops from 30 kHz to 14 kHz, and the ticking sounds can be heard on the low frequencies.

Parti-coloured bat in the Sønderborg-area and at the island of Als

The brown long-eared bat (Plecotus auritus) uses an ultrasound of 27-65 kHz and is especially fond of moths, where the larger catches are brought to a fixed dining area. The female gives birth to 1 young in the month of July. It is red-listed as LC (least concern) and thus not threatened.

Brown long-eared bat in the Sønderborg-area and at the island of Als

The daubenton´s bat (Myotis daubentonii) goes into hibernation from end September early November and it is believed that most mating’s take place in the winterroost. The female gives birth to a single young in the month of June-July. The species is red-listed as LC (least concern), which corresponds to not endangered.

The bat - the insect hunter of the night

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