Burchell's Army Ant

Burchell's Army Ant

Eciton burchellii

Daily sighting probability ~20% · Possible
at Braulio Carrillo National Park

In 3 days ~50% in a week ~80%

69 Verified sightings at Braulio Carrillo National Park From 2019 to 2026
314 In all 21 parks
December 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 Braulio Carrillo National Park?

Possible

About 20% of wildlife watchers report a Burchell's Army Ant sighting in Braulio Carrillo National Park on a given day, based on 69 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 30th most-seen of the 378 insects we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.

When is the best time to see a Burchell's Army Ant in Braulio Carrillo National Park?

February, August and December

In those months about 30% of wildlife watchers report a Burchell's Army Ant in Braulio Carrillo National Park on a given day, against about 10% in March, May–June, September and November, the lowest months.

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.

Is Braulio Carrillo National Park the best place to see a Burchell's Army Ant?

3rd of 21

Of the 21 parks where we can rate Burchell's Army Ant sightings, Braulio Carrillo National Park ranks 3rd at about 20%. The best odds are in Santa Rosa National Park (Costa Rica, about 30%) and Rincón de la Vieja National Park (Costa Rica, about 20%).

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 Braulio Carrillo National Park (69 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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