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  3. Greater Sac-Winged Bat

One of the 29 bats on WAnimals

Mammals · Chiroptera · Emballonuridae

Greater Sac-Winged Bat

Saccopteryx bilineata

Least Concern

The species is abundant and widely distributed; it faces no significant short-term risk.

Spotted something wrong?

The greater sac-winged bat roosts in plain view, on the outer face of tree trunks rather than hidden in hollows: it presses itself against the bark in neat groups a few centimetres apart, camouflaged by two wavy white lines running down its back. It is insectivorous and hunts in flight below the canopy. The males have wing sacs that they fill with a mixture of secretions and urine, and with which they perfume the air during displays to females.

Weight

6 g – 11 g

Size

4.5 cm – 5.5 cm

Life expectancy

6 years

Diet

Insectivore

Feeds mainly on insects and other invertebrates.

Activity

Nocturnal

Active mainly at night.

Social structure

Colony

Lives in large concentrations, often for breeding reasons.

Rainforest
16countries68parks

Fun facts

  • The males have a sac in the wing membrane that they refill daily with a mixture of saliva, urine and glandular secretions, and that they fan at females to spread the scent: it is one of the most elaborate systems of chemical courtship known in any mammal.
  • The pups babble: they produce long, repetitive sequences of syllables while learning the adults' territorial song, a vocal development comparable to human infant babbling and very rare in the animal kingdom.

Life cycle and biology

Skeleton type
Vertebrate - internal bony skeleton (mammal)
Habitat and environment
Trunks of large trees, walls and eaves in rainforest and wooded country of tropical America
Sexual maturity
12 months
Gestation / incubation
4 months
Litter / clutch size
1

Sources consulted: Wikipedia (es): Saccopteryx bilineata

Where to find it

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Where to see it

Parks and dive sites where this species has been documented — showing 10 of 68.

Related species

Other species in the catalogue with the most in common with Greater Sac-Winged Bat — same habitat, park, country, tags or family.

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Keep exploring

Based on what we already know about greater sac-winged bat.

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The pins mark the parks where its presence is documented.

See its range on the interactive map→
Sian Ka'anMexico
CalakmulMexico
Sumidero CanyonMexico
Sierra GordaMexico
CorcovadoCosta Rica
TortugueroCosta Rica
Manuel AntonioCosta Rica
MonteverdeCosta Rica
Arenal VolcanoCosta Rica
CoibaPanama
See all 68 parks
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Vampire Bat

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Jamaican Fruit-eating Bat

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CountriesCosta Rica
ParksSian Ka'anMexico
TagsInsectivore
Insectivore
Nocturnal
Colonial
Rainforest
Mammal

North America8

South America8

Costa Rica
Mexico
Colombia
Panama
Peru
Brazil
Belize
Costa Rica
Guatemala
Honduras
Mexico
Nicaragua
Panama
Trinidad and Tobago
Bolivia
Brazil
Colombia
Ecuador
Guyana
Peru
Suriname
Venezuela