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Serotine bat (Eptesicus serotinus) complete detail – updated

Serotine bat (Eptesicus serotinus) complete detail – updated. Description of Serotine bat (Eptesicus serotinus) choti bagal. Classification of Serotine bat (Eptesicus serotinus).  Classification of Serotine bat (Eptesicus serotinus). They appears late in the evening or we can say start of the night. Median emergence time is 30 to 45 minutes after sunset………….
Habit and habitat of Serotine bat (Eptesicus serotinus). Serotine bat, occurs mainly in lowland areas, where there are human settlements. The serotine bat has become very well adapted to man-made roosting sites. The flight is slow and fluttery. Serotine bats are usually Insectivorous. They feed on larger beetles, moths, flying ants, chafers and flies………..
Size: Head to body 65 mm. to 85 mm. Tail 45 mm. to 55 mm. Forearm length 46 mm. to 58 mm. They appears late in the evening or we can say start of the night. Both sexes are similar in appearance, but females are slightly larger than males. Young Serotine bats are darker in color than adults……….
The flight is slow and fluttery. They are usually Insectivorous. The mating season starts in August. Normally one young is born at a time, if the colony is disturbed during its first few days of life, the mother may carry it to a new site.

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Click here to view State wise list of Indian state animals (symbols) – updated

Distinctive Identification

Size: Head to body 65 mm. to 85 mm. Tail 45 mm. to 55 mm. Forearm length 46 mm. to 58 mm. Weigh between 15 to 35 g. and have a wingspan of 315 – 385 mm.

In color dark smoky brown above and yellowish brown and white below, the nose and triangular shaped ears are black, and the wing membranes are dark black or brown. Head flat with moderate sized ears.

Eptesicus serotinus has a robust body and large, broad head, with relatively large eyes and short, thick, rounded ears. Eptesicus serotinus has long fur, with paler yellowish-brown belly.

Both sexes are similar in appearance, but females are slightly larger than males. Young Serotine bats are darker in color than adults.

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Classification

Common Name – Serotine bat

Local Name – Choti bagal

Zoological Name – Eptesicus serotinus

Kingdom – Animalia

Phylum – Chordata

Class – Mammalia

Order – Chiroptera

Family –Vespertilionidae

Genus – Eptesicus

Conservational Status – Schedule – V, according to wildlife (Protection) act, 1972 and classified as Least Concern (LC) by the IUCN.

Distribution

Occurs in Indian limits in the Himalayas from Kashmir to Assam, Rajasthan. Eptesicus serotinus also found in many parts of the world.

Eptesicus serotinus, found in a variety of habitats across its wide range including semi-desert, temperate and subtropical dry forest, Mediterranean-type shrub land, farmland and suburban areas.

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Habit and habitat

Serotine bat, occurs mainly in lowland areas, where there are human settlements. The serotine bat has become very well adapted to man-made roosting sites.

Hibernates in winter, singly or in small groups in hollows of trees and similar situations. They roosts in older houses and buildings that have high gable ends and cavity walls. They also found in holes and rarely bat boxes.

In summer they roosts – females are found in nursery roosts of 15-30 individuals from March to the end of August Males are solitary throughout the year. At the time of winter they roosts cavity walls, chimneys and under the floors of old buildings and caves.

They appears late in the evening or we can say start of the night. Median emergence time is 30 to 45 minutes after sunset.

The flight is slow and fluttery. Serotine bats are usually Insectivorous. They feed on larger beetles, moths, flying ants, chafers and flies.

These colonies vary in size from around 5 to 500 individuals, or more. During the summer, males are solitary or occur in small groups, but they occur with females in spring. Serotine bat uses a variety of ‘social’ calls to communicate with other individuals.

Click here to view State wise list of Indian state birds (symbols) – updated

Maternity colonies build up in May. The mating season starts in August.  Normally one young is born at a time, if the colony is disturbed during its first few days of life, the mother may carry it to a new site.

By the third week of life the young bat is able to fly, and at around five weeks it is able to forage independently. Average lifespan is between 18 to 20 years.

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