# Little Bat (Vespadelus vulturnus) - Web page: https://www.funwildfacts.com/oceanien/mammal/little-bat - Published: 2026-05-30 - Last updated: 2026-05-30 ## Overview The Little Bat (Vespadelus vulturnus) is one of Australia's smallest bat species, weighing just 3-5 grams – about the same as a sugar cube! This tiny mammal has a body length of 35-45 millimeters and a wingspan of 19-23 centimeters. Its fur is soft and varies from light brown to reddish-brown on the upper parts, while the belly is paler, almost cream-colored. The ears are small and rounded, and the face has a characteristically flat profile that distinguishes it from closely related species. This species belongs to the family Vespertilionidae, the largest and most widespread bat family in the world. The Little Bat is found across much of eastern and southern Australia, from Queensland down to Victoria and west to South Australia. They have adapted well to both natural and human-modified environments and can be found in everything from eucalyptus forests to city parks and gardens. Like all bats, the Little Bat is a nocturnal animal that uses echolocation to navigate and find food in the dark. They emit high-pitched calls that bounce back from objects in their surroundings, creating a detailed sonic picture of the world around them. Their echolocation operates at frequencies between 40-55 kHz, which is too high for the human ear to detect. This ability makes them skilled hunters capable of catching small insects mid-flight with remarkable precision. The Little Bat plays an important ecological role as a natural pest controller. A single bat can consume up to half its body weight in insects each night, meaning hundreds of mosquitoes, midges, and other small bugs. This makes them valuable allies for both farmers and city dwellers looking to reduce insect populations naturally. ## Quick facts - Weight: 3–5 g - Length: 3.5–4.5 cm - Wingspan: 19–23 cm - Top Speed: 25 km/h - Lifespan: 4–8 yrs - Diet: Insectivore - Conservation Status: Least Concern ## Habitat The Little Bat is a highly adaptable species that thrives in a variety of environments across eastern and southern Australia. They prefer areas with access to both open hunting grounds and suitable roosting sites. They are commonly found in eucalyptus forests, open woodlands, grasslands, and along watercourses where insects are abundant. During the day, they hide in tree hollows, under loose bark, in buildings, house roofs, and sometimes in caves. They have proven particularly successful in urban and suburban environments where they utilize buildings as roost sites and hunt insects around streetlights and in parks. Access to water is important, and they are often seen hunting over ponds, lakes, and slow-flowing waterways. Their ability to adapt to human presence has made them one of the most common bat species in many Australian cities. - Forest - Woodland - Grassland - Urban - Farmland - Garden ## Seasonal Behavior The Little Bat is active year-round in the warmer parts of its range, but in southern regions they may enter a period of torpor (light hibernation) during the coldest winter months to conserve energy. Mating typically occurs in autumn (March-April in the Southern Hemisphere), and females store sperm over winter. Fertilization occurs in spring (September-October) and after a gestation period of approximately 60 days, young are born in December-January, during the Australian summer. This coincides with the period when insects are most abundant, giving females good opportunities to find food to produce milk for their young. The young can fly after about 4-6 weeks and are fully independent at 8-10 weeks of age. ## Breeding - Gestation: 60 days - Offspring: 1–2 ## Behavior & Ecology - Activity Pattern: Nocturnal - Social Behavior: The Little Bat is a social species that often roosts in groups of 10-100 individuals. Females form larger maternity colonies during the breeding season. - Migration: Resident - Population: Common with stable populations throughout its range ## Did you know? - A Little Bat can eat up to 600 insects in a single hour – that's more than 10 insects per minute! - Despite its name, the Little Bat isn't actually Australia's smallest bat – that title goes to the Forest Bat, which weighs just 2 grams. - Their heart rate can vary dramatically: from 400 beats per minute during flight to just 25 beats per minute when resting in torpor. - Little Bats can fly at speeds up to 25 kilometers per hour, but they usually hunt at much slower speeds for better maneuverability. - These bats can live up to 8 years in the wild, which is remarkably long for such a small mammal. - Females form 'maternity colonies' where only females and young stay during the breeding season, while males live more solitarily. - They can eat insects almost as large as their own head by folding their wings like a pouch to capture the prey. - Little Bats can drink water while flying by dipping their lower jaw into the water surface – a skill requiring exceptional precision! ## Taxonomy - Kingdom: Animalia - Class: Mammalia - Order: Chiroptera - Family: Vespertilionidae - Species: Vespadelus vulturnus ## Image - URL: https://images.djurfakta.com/animals/liten-fladdermus/1778011533977-1.jpg - Photo: Michael Pennay - License: CC BY 3.0 ## Other languages - sv: https://www.djurfakta.com/oceanien/mammal/liten-fladdermus - da: https://www.dyrefakta.com/da/oceanien/mammal/lille-flagermus - no: https://www.dyrefakta.com/oceanien/mammal/liten-flaggermus