El Impenetrable National Park

🇦🇷 Argentina

🐆 Jaguar Trails in the Dry Chaco

🌍 #42 Global · 4.5 ★★★★★ ★★★★★ #6 in South America #29 in Savanna & Grassland

Gran Chaco, Argentina 614 spp. recorded

El Impenetrable National Park is a tropical savanna in the Gran Chaco of Argentina, a mosaic of dense dry forest, palm‑groves and seasonally flooded lowlands. The landscape supports a mix of towering quebracho trees and open grass patches that give way to water‑filled depressions where the broad‑snouted caiman basks.

-24.998° S 61.119° W

Wildlife

⭐ Iconic Species

South American Tapir

Tapirus terrestris

60–70% · Likely

Jaguar

Panthera onca

30–40% · Possible

Giant Anteater

Myrmecophaga tridactyla

30–40% · Possible

Broad-snouted Caiman

Caiman latirostris

70–80% · Very likely

📊 Most Spotted

Brazilian Cardinal

Paroaria coronata

80–90% · Very likely

Chaco Chachalaca

Ortalis canicollis

80–90% · Very likely

Monk Parakeet

Myiopsitta monachus

70–80% · Very likely

Blue-gray Saltator

Saltator coerulescens

70–80% · Very likely

Pearly-vented Tody-Tyrant

Hemitriccus margaritaceiventer

70–80% · Very likely

Narrow-billed Woodcreeper

Lepidocolaptes angustirostris

70–80% · Likely

Picazuro Pigeon

Patagioenas picazuro

60–70% · Likely

White-tipped Dove

Leptotila verreauxi

60–70% · Likely

Golden-billed Saltator

Saltator aurantiirostris

60–70% · Likely

Great Kiskadee

Pitangus sulphuratus

60–70% · Likely

Great Antshrike

Taraba major

60–70% · Likely

Blue-and-yellow Tanager

Rauenia bonariensis

60–70% · Likely

⭐ Iconic Species

South American Tapir

Tapirus terrestris

60–70% · Likely

Jaguar

Panthera onca

30–40% · Possible

Giant Anteater

Myrmecophaga tridactyla

30–40% · Possible

📊 Most Spotted

Chacoan Mara

Dolichotis salinicola

50–60% · Likely

Southern Three-banded Armadillo

Tolypeutes matacus

50–60% · Likely

White-lipped Peccary

Tayassu pecari

40–50% · Likely

Black Howler

Alouatta caraya

40–50% · Likely

Capybara

Hydrochoerus hydrochaeris

30–40% · Possible

Dicotyles tajacu

Pecari tajacu

30–40% · Possible

Tapeti

Sylvilagus brasiliensis

30–40% · Possible

Crab-eating Fox

Cerdocyon thous

30–40% · Possible

Mountain Lion

Puma concolor

20–30% · Possible

Common Yellow-toothed Cavy

Galea musteloides

20–30% · Possible

Southern Tamandua

Tamandua tetradactyla

Insufficient data

Six-banded Armadillo

Euphractus sexcinctus

Insufficient data

📊 Most Spotted

Brazilian Cardinal

Paroaria coronata

80–90% · Very likely

Chaco Chachalaca

Ortalis canicollis

80–90% · Very likely

Monk Parakeet

Myiopsitta monachus

70–80% · Very likely

Blue-gray Saltator

Saltator coerulescens

70–80% · Very likely

Pearly-vented Tody-Tyrant

Hemitriccus margaritaceiventer

70–80% · Very likely

Narrow-billed Woodcreeper

Lepidocolaptes angustirostris

70–80% · Likely

Picazuro Pigeon

Patagioenas picazuro

60–70% · Likely

White-tipped Dove

Leptotila verreauxi

60–70% · Likely

Golden-billed Saltator

Saltator aurantiirostris

60–70% · Likely

Great Kiskadee

Pitangus sulphuratus

60–70% · Likely

Great Antshrike

Taraba major

60–70% · Likely

Blue-and-yellow Tanager

Rauenia bonariensis

60–70% · Likely

⭐ Iconic Species

Broad-snouted Caiman

Caiman latirostris

70–80% · Very likely

📊 Most Spotted

Painted Lancehead

Bothrops diporus

40–50% · Likely

Amazon Racerunner

Ameiva ameiva

40–50% · Likely

Four-toed Tegu

Teius teyou

30–40% · Possible

Cope's Mabuya

Notomabuya frenata

30–40% · Possible

Spiny Lava Lizard

Tropidurus spinulosus

30–40% · Possible

Scorpion Mud Turtle

Kinosternon scorpioides

30–40% · Possible

Chilean Tortoise

Chelonoidis chilensis

Insufficient data

Etheridge's Lava Lizard

Tropidurus etheridgei

Insufficient data

Red Tegu

Salvator rufescens

Insufficient data

Red-Footed Tortoise

Chelonoidis carbonarius

Insufficient data

Banded Hognose Snake

Xenodon pulcher

Insufficient data

Argentinian Rainbow Boa

Epicrates alvarezi

Insufficient data

📊 Most Spotted

Vizcacheras' White-lipped Frog

Leptodactylus bufonius

40–50% · Likely

Mato Grosso Snouted Tree Frog

Scinax acuminatus

30–40% · Possible

Cururu Toad

Rhinella diptycha

30–40% · Possible

Miranda's White-lipped Frog

Leptodactylus macrosternum

20–30% · Possible

Chaco Tree Frog

Boana raniceps

20–30% · Possible

Sapito De Haro

Elachistocleis haroi

Insufficient data

Lesser Snouted Tree Frog

Scinax nasicus

Insufficient data

Muller's Termite Frog

Dermatonotus muelleri

Insufficient data

Chaco Granulated Toad

Rhinella major

Insufficient data

Odontophrynus lavillai

Insufficient data

Budgett's Frog

Lepidobatrachus laevis

Insufficient data

Chacoan Horned Frog

Ceratophrys cranwelli

Insufficient data

Animal Events

🐊

Caiman Lagoon Congregation

AugSepOct

Broad-snouted caimans congregate and bask at shrinking dry-season lagoons along the Bermejo and Bermejito rivers, the phenomenon that names the Pozo del Yacaré trail.

Broad-snouted Caiman

Caiman latirostris

70–80% · Very likely

🐜

Dry-Season Waterhole Gatherings

AugSepOct

In the Chaco dry season, tapirs and giant anteaters concentrate at the remaining lagoons and waterholes, watched from the park's viewing blinds on the Pozo del Yacaré trail.

Giant Anteater

Myrmecophaga tridactyla

30–40% · Possible

South American Tapir

Tapirus terrestris

60–70% · Likely

🐦

Waterbird Breeding

SepOctNov

Austral spring breeding season for the Chaco wetlands' large birds — jabiru storks and turquoise-fronted amazons nest and are at their most active along the Bermejo floodplain.

Jabiru

Jabiru mycteria

20–30% · Possible

Blue-fronted Parrot

Amazona aestiva

50–60% · Likely

Sighting Calendar

Chance of spotting each species, month by month

Species Total

50–60

60–70

60–70

50–60

50–60

60–70

60–70

60–70

60–70

70–80

60–70

60–70

South American Tapir

20–30

40–50

30–40

30–40

30–40

60–70

40–50

80–90

70–80

70–80

70–80

40–50

40–50

60–70

10–20

10–20

10–20

40–50

0–10

0–10

10–20

30–40

40–50

0–10

40–50

10–20

50–60

10–20

10–20

30–40

40–50

40–50

10–20

30–40

30–40

10–20

Broad-snouted Caiman

60–70

70–80

60–70

70–80

30–40

60–70

70–80

80–90

80–90

70–80

50–60

40–50

Brazilian Cardinal

80–90

70–80

70–80

80–90

80–90

70–80

80–90

80–90

80–90

80–90

70–80

70–80

Chaco Chachalaca

70–80

60–70

70–80

60–70

70–80

70–80

90–100

80–90

80–90

80–90

80–90

80–90

60–70

80–90

70–80

70–80

70–80

70–80

70–80

70–80

70–80

70–80

60–70

80–90

Blue-gray Saltator

60–70

70–80

70–80

70–80

70–80

70–80

70–80

70–80

70–80

80–90

70–80

80–90

Pearly-vented Tody-Tyrant

60–70

50–60

60–70

60–70

60–70

70–80

70–80

60–70

70–80

80–90

70–80

50–60

Narrow-billed Woodcreeper

60–70

60–70

60–70

70–80

60–70

60–70

80–90

60–70

60–70

70–80

60–70

70–80

Picazuro Pigeon

60–70

60–70

60–70

50–60

50–60

40–50

80–90

70–80

70–80

90–100

80–90

70–80

White-tipped Dove

60–70

60–70

60–70

50–60

60–70

70–80

50–60

60–70

70–80

80–90

80–90

70–80

Golden-billed Saltator

60–70

70–80

60–70

60–70

60–70

50–60

80–90

60–70

60–70

70–80

70–80

60–70

60–70

80–90

60–70

70–80

60–70

60–70

70–80

50–60

60–70

60–70

60–70

70–80

Great Antshrike

60–70

50–60

60–70

60–70

60–70

80–90

60–70

60–70

50–60

80–90

60–70

60–70

Blue-and-yellow Tanager

50–60

40–50

50–60

60–70

50–60

60–70

60–70

60–70

70–80

70–80

60–70

60–70

Animal Events

🐜 Dry-Season Waterhole Gatherings

🐊 Caiman Lagoon Congregation

🐦 Waterbird Breeding

Sighting Zones

Warm areas are where all species together are recorded most, so they track where people go as much as where animals are. For one species, see the map on its own page.

0.0 ★★★★★ ★★★★★ World-class

🐆 Jaguar Trails in the Dry Chaco

🦜

Biodiversity

Good

How rich is the wildlife?

4.3 Global avg

3.5 ★★★★★ ★★★★★

Species by taxon

🦅 Birds

384

🐒 Mammals

87

🦎 Reptiles

100

🐸 Amphibians

43

614 Total Species

841 Global average across 280 parks

13 Threatened 27 Endemic

🔭

Sighting

Excellent

How likely to see animals?

3.6 Global avg

5.0 ★★★★★ ★★★★★

🎯

Top-12 Avg Probability

62% Global avg

72%

📊

Coverage (258 species at ≥5% of 614 in the inventory)

24% Global avg

42%

🔀

Taxon variety in top 12 (11 bird, 1 reptile)

47% Global avg

20%

🔭

Species per 10 outings (distinct species a visitor would meet over 10 outings — effort held equal across parks)

132 Global avg

168

🌟

Iconic-group species (≥15%) (every species from the 19 iconic groups — monkeys, cats, toucans, macaws, sloths, crocodilians… — not just the 4 highlighted above)

14 Global avg

27

⭐

High-prob species (>40%)

26 Global avg

50

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