Greater Sac-winged Bat
Greater Sac-winged BatGreater Sac-winged BatGreater Sac-winged Bat

Greater Sac-winged Bat

Saccopteryx bilineata

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
10–20% · With luck
overall probability at Calakmul Biosphere Reserve
27 Verified records at Calakmul Biosphere Reserve
September Best month highest sighting rate
☀️ Diurnal When it's active during daytime hours (6am–6pm)

The greater sac-winged bat (Saccopteryx bilineata) is a bat of the family Emballonuridae native to Central and South America. They are common bats seen in the rainforest, as they often roost on the outside of large trees. They are insectivores and use echolocation calls through the mouth to track their prey, which includes flies, beetles, butterflies and moths. The long nose and upper lip are highly mobile and can shift upward to enlarge the mouth opening. The term "sac-winged" refers to small pouches on the wings. These sacs are used by males to attract females and to mark their harem territory. Wikipedia →

10–20% of wildlife watchers report a Greater Sac-winged Bat sighting in Calakmul Biosphere Reserve, based on 27 days of visitor records from GBIF citizen-science data.

Closest Relatives at Calakmul Biosphere Reserve

Lesser Dog-like Bat
LC

Lesser Dog-like Bat

☀️ Diurnal Mammal

Peropteryx macrotis

Insufficient data
Espirito Santo Free-tailed Bat
LC

Espirito Santo Free-tailed Bat

🌅 Crepuscular Mammal

Nyctinomops laticaudatus

10–20% · With luck
Jamaican Fruit-eating Bat
LC

Jamaican Fruit-eating Bat

☀️🌙 Day & Night Mammal

Artibeus jamaicensis

10–20% · With luck
Big-eared Woolly Bat
LC

Big-eared Woolly Bat

☀️🌙 Day & Night Mammal

Chrotopterus auritus

10–20% · With luck
Pygmy Fruit-eating Bat
LC

Pygmy Fruit-eating Bat

🌙 Nocturnal Mammal

Artibeus phaeotis

5–10% · With luck
Mesoamerican Common Mustached Bat
LC

Mesoamerican Common Mustached Bat

🌙 Nocturnal Mammal

Pteronotus mesoamericanus

5–10% · With luck
wrinkle-faced bat
LC Endemic

wrinkle-faced bat

🌙 Nocturnal Mammal

Centurio senex

5–10% · With luck
Great Fruit-eating Bat
LC

Great Fruit-eating Bat

☀️🌙 Day & Night Mammal

Artibeus lituratus

5–10% · With luck
Cozumelan Golden Bat
LC

Cozumelan Golden Bat

☀️🌙 Day & Night Mammal

Mimon cozumelae

5–10% · With luck
Vampire Bat
LC

Vampire Bat

☀️🌙 Day & Night Mammal

Desmodus rotundus

Insufficient data
Yellow-throated Big-eared Bat
LC

Yellow-throated Big-eared Bat

🌙 Nocturnal Mammal

Lampronycteris brachyotis

Insufficient data
Hairy-legged Vampire Bat
LC

Hairy-legged Vampire Bat

☀️🌙 Day & Night Mammal

Diphylla ecaudata

Insufficient data

📅 Monthly Probability

<5
Jan
10–20
Feb
<5
Mar
20–30
Apr
20–30
May
<5
Jun
10–20
Jul
10–20
Aug
40–50
Sep
10–20
Oct
20–30
Nov
<5
Dec

☀️ When They're Spotted

Most active during daytime hours (6am–6pm) · across all parks (global)

☀️Diurnal
☀️🌙🌙12am6am12pm6pm12am

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Probability
1 Carara National Park 🇨🇷 Costa Rica
10–20%
2 Calakmul Biosphere Reserve 🇲🇽 Mexico
10–20%
3 Celestún Biosphere Reserve 🇲🇽 Mexico
10–20%
4 Piedras Blancas National Park 🇨🇷 Costa Rica
10–20%
5 Yasuní National Park 🇪🇨 Ecuador
10–20%
6 Braulio Carrillo National Park 🇨🇷 Costa Rica
10–20%
7 Soberanía National Park 🇵🇦 Panama
10–20%
8 Cuyabeno Wildlife Reserve 🇪🇨 Ecuador
5–10%
9 Corcovado National Park 🇨🇷 Costa Rica
5–10%
10 Montes Azules Biosphere Reserve 🇲🇽 Mexico
5–10%
11 Arenal Volcano National Park 🇨🇷 Costa Rica
<5%
12 Santa Rosa National Park 🇨🇷 Costa Rica
Insufficient data
13 Main Ridge Forest Reserve 🇹🇹 Trinidad and Tobago
Insufficient data
14 Anavilhanas National Park 🇧🇷 Brazil
Insufficient data
15 Bastimentos Island National Marine Park 🇵🇦 Panama
Insufficient data
16 Amacayacu National Natural Park 🇨🇴 Colombia
Insufficient data
17 Cabo Blanco Absolute Nature Reserve 🇨🇷 Costa Rica
Insufficient data
18 Tortuguero National Park 🇨🇷 Costa Rica
Insufficient data
19 Tayrona National Natural Park 🇨🇴 Colombia
Insufficient data
20 Chagres National Park 🇵🇦 Panama
Insufficient data
21 Ostional Wildlife Refuge 🇨🇷 Costa Rica
Insufficient data
22 Palo Verde National Park 🇨🇷 Costa Rica
Insufficient data
23 Las Baulas Marine National Park 🇨🇷 Costa Rica
Insufficient data
24 Manuel Antonio National Park 🇨🇷 Costa Rica
Insufficient data
25 Tapantí-Macizo de la Muerte National Park 🇨🇷 Costa Rica
Insufficient data
26 La Amistad International Park (Panama) 🇵🇦 Panama
Insufficient data
27 Tambopata National Reserve 🇵🇪 Peru
Insufficient data

Quick answers

What are the chances of seeing a Greater Sac-winged Bat in Calakmul Biosphere Reserve?

About 18% of wildlife watchers report a Greater Sac-winged Bat sighting in Calakmul Biosphere Reserve, based on 27 days of visitor records from GBIF citizen-science data.

When is the best time to see Greater Sac-winged Bat in Calakmul Biosphere Reserve?

September has the highest sighting rate for Greater Sac-winged Bat in Calakmul Biosphere Reserve in our monthly data.

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