Burchell's Army Ant

Burchell's Army Ant

Eciton burchellii

Daily sighting probability ~10% · With luck
at Calakmul Biosphere Reserve

In 3 days ~30% in a week ~60%

10 Verified sightings at Calakmul Biosphere Reserve From 2019 to 2026
314 In all 21 parks
January Best month
☀️ Diurnal When it's spotted

About the Burchell's Army Ant

Eciton burchellii is a species of New World army ant in the genus Eciton. This species performs expansive, organized swarm raids that give it the informal name, Eciton army ant. This species displays a high degree of worker polymorphism.

Sterile workers are of four discrete size-castes: minors, medias, porters (sub-majors), and soldiers (majors). Soldiers have much larger heads and specialized mandibles for defense. In lieu of underground excavated nests, colonies of E. burchellii form temporary living nests known as bivouacs, which are composed of hanging live worker bodies and which can be disassembled and relocated during colony emigrations. Eciton burchellii colonies cycle between stationary phases and nomadic phases when the colony emigrates nightly. These alternating phases of emigration frequency are governed by coinciding brood developmental stages.

Group foraging efforts known as "raids" are maintained by the use of pheromones, can be 200 metres (660 ft) long, and employ up to 200,000 ants. Workers are also adept at making living structures out of their own bodies to improve efficiency of moving as a group... Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Santa Rosa National Park 🇨🇷 Costa Rica
~30%
2 Rincón de la Vieja National Park 🇨🇷 Costa Rica
~20%
3 Braulio Carrillo National Park 🇨🇷 Costa Rica
~20%
4 Tikal National Park 🇬🇹 Guatemala
~20%
5 Palo Verde National Park 🇨🇷 Costa Rica
~20%
6 Ostional Wildlife Refuge 🇨🇷 Costa Rica
~20%
7 Ría Lagartos Biosphere Reserve 🇲🇽 Mexico
~10%
8 Piedras Blancas National Park 🇨🇷 Costa Rica
~10%
9 Itatiaia National Park 🇧🇷 Brazil
~10%
10 Arenal Volcano National Park 🇨🇷 Costa Rica
~10%
11 Soberanía National Park 🇵🇦 Panama
~10%
12 Corcovado National Park 🇨🇷 Costa Rica
~10%
13 Calakmul Biosphere Reserve 🇲🇽 Mexico
~10%
14 Gandoca-Manzanillo Wildlife Refuge 🇨🇷 Costa Rica
~10%
15 Monteverde Cloud Forest Reserve 🇨🇷 Costa Rica
~10%
16 Manu National Park 🇵🇪 Peru
~10%
17 Carara National Park 🇨🇷 Costa Rica
~10%
18 Yasuní National Park 🇪🇨 Ecuador
~10%
19 Tortuguero National Park 🇨🇷 Costa Rica
~10%
20 Cahuita National Park 🇨🇷 Costa Rica
~10%
21 Tambopata National Reserve 🇵🇪 Peru
~10%

Before you go

What are the chances of seeing a Burchell's Army Ant in Calakmul Biosphere Reserve?

With luck

About 10% of wildlife watchers report a Burchell's Army Ant sighting in Calakmul Biosphere Reserve on a given day, based on 10 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 23rd most-seen of the 75 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.

When is the best time to see a Burchell's Army Ant in Calakmul Biosphere Reserve?

January

In that month about 30% of wildlife watchers report a Burchell's Army Ant in Calakmul Biosphere Reserve on a given day, against under 5% in April–May, July–September and December, the lowest months. That is one of Calakmul Biosphere Reserve's driest months, with about 30 mm of rain against 130 mm in June.

What time of day is best to see a Burchell's Army Ant?

Between 9 am and noon

Across all the parks we cover, that three-hour window holds the most Burchell's Army Ant sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.

Which relatives of the Burchell's Army Ant live in Calakmul Biosphere Reserve?

Same family: Formicidae

The closest relatives of the Burchell's Army Ant that you can see in Calakmul Biosphere Reserve (family Formicidae, Ants) are Dolichoderus bispinosus (about 10%) and Hairy-Headed Leafcutter Ant (about 10%), with each one's daily chance of a sighting.

Where does the Burchell's Army Ant sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Burchell's Army Ant is recorded against all the insects logged in Calakmul Biosphere Reserve (10 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.

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