Anavilhanas National Park
🇧🇷 Brazil
🐬 Boto River Dolphin SanctuaryAnavilhanas National Park is a vast riverine protected area in the Brazilian Amazon, featuring a massive labyrinth of freshwater channels, flooded forests, and countless floating islands. This wetland labyrinth stands apart from solid-land reserves through its constantly shifting aquatic pathways and dense vegetation shaped by rising and falling river levels.
-2.270° S 60.906° W
Wildlife
⭐ Iconic Species
★ 
Boto
Inia geoffrensis
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Black Caiman
Melanosuchus niger
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Brown-throated Sloth
Bradypus variegatus
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Garden Tree Boa
Corallus hortulana
📊 Most Spotted
Yellow-rumped Cacique
Cacicus cela
White-throated Toucan
Ramphastos tucanus
Black Vulture
Coragyps atratus
Festive Parrot
Amazona festiva
Tropical Kingbird
Tyrannus melancholicus
Screaming Piha
Lipaugus vociferans
Green Iguana
Iguana iguana
Green-backed Trogon
Trogon viridis
Swallow-wing Puffbird
Chelidoptera tenebrosa
Silver-beaked Tanager
Ramphocelus carbo
Ringed Kingfisher
Megaceryle torquata
Eastern Cane Toad
Rhinella marina
⭐ Iconic Species
📊 Most Spotted
Common Squirrel Monkey
Saimiri sciureus
Noisy Night Monkey
Aotus vociferans
Tucuxi
Sotalia fluviatilis
Proboscis Bat
Rhynchonycteris naso
Linnaeus's Two-toed Sloth
Choloepus didactylus
Greater Dog-like Bat
Peropteryx kappleri
Humboldt’s Squirrel Monkey
Saimiri cassiquiarensis
Pale-throated Sloth
Bradypus tridactylus
Lesser Dog-like Bat
Peropteryx macrotis
Brown Capuchin
Sapajus apella
Giant Otter
Pteronura brasiliensis
Chestnut Sac-winged Bat
Cormura brevirostris
📊 Most Spotted
Yellow-rumped Cacique
Cacicus cela
White-throated Toucan
Ramphastos tucanus
Black Vulture
Coragyps atratus
Festive Parrot
Amazona festiva
Tropical Kingbird
Tyrannus melancholicus
Screaming Piha
Lipaugus vociferans
Green-backed Trogon
Trogon viridis
Swallow-wing Puffbird
Chelidoptera tenebrosa
Silver-beaked Tanager
Ramphocelus carbo
Ringed Kingfisher
Megaceryle torquata
Great Kiskadee
Pitangus sulphuratus
Blue-headed Parrot
Pionus menstruus
⭐ Iconic Species
📊 Most Spotted
Green Iguana
Iguana iguana
Amazon Racerunner
Ameiva ameiva
Common Caiman
Caiman crocodilus
Trinidad Gecko
Gonatodes humeralis
Tropical House Gecko
Hemidactylus mabouia
Yellow-headed Sideneck
Podocnemis unifilis
Boa Constrictor
Boa constrictor
Diving Lizard
Uranoscodon superciliosus
Barba Amarilla
Bothrops atrox
Forest Whiptail
Kentropyx pelviceps
Green Vine Snake
Oxybelis fulgidus
Twist-neck Turtle
Platemys platycephala
📊 Most Spotted
Eastern Cane Toad
Rhinella marina
Smoky Jungle Frog
Leptodactylus pentadactylus
South American Common Toad
Rhinella margaritifera
Giant Broad-headed Treefrog
Osteocephalus taurinus
Rusty Tree Frog
Boana boans
Boatman frog
Trachycephalus resinifictrix
Toad-wife Tree Frog
Trachycephalus cunauaru
Loreto White-lipped Frog
Leptodactylus rhodomystax
Snouted Toad
Rhinella proboscidea
Three-striped Poison Frog
Ameerega trivittata
Red Snouted Tree Frog
Scinax ruber
Dwarf Tree Frog
Dendropsophus nanus
Recent sightings in Anavilhanas National Park
LIVEiNaturalistAnimal Events
2Brown-throated Sloth Canopy Foraging in Flooded Igapó
Rising floodwaters force sloths to navigate dense upper canopy branches, where they actively feed on emergent tender leaves and fruit.
1Boto River Dolphin Feeding and Low Water Concentration
As dry season water levels drop, fish concentrate in shrinking channels, drawing high numbers of Boto river dolphins to feed actively near sandbanks and river edges.
3Black Caiman Dry Season Basking and Nesting
Exposed sandbanks and drying mudflats during early seasonal changes provide optimal environments for large caimans to bask and prepare nesting sites.
Sighting Calendar
Average chance of spotting the park's most-spotted species, month by month
- 1Boto River Dolphin Feeding and Low Water Concentration
- 2Brown-throated Sloth Canopy Foraging in Flooded Igapó
- 3Black Caiman Dry Season Basking and Nesting
Sighting Zones
Warmer areas are where all species together are recorded most often.
Essentials
Climate
What visitors saw
We saw ringed kingfishers, pink dolphins, blue macaws, red macaws, white-throated toucans, three-toed sloths, squirrel monkeys, green ibis, reddish egret, wattled Jacanas, black nun birds, Amazon kingfish, yellow cacique, puffbirds, black collared hawks, white-tailed trojans, and crimson topaz hummingbirds.
On a night tour, we had better luck seeing animals, using spotlights to see sloths, snakes, and caimans (gator / crocodile-like reptiles).
We saw giant ants, heard some monkeys, smelled the path of a well fed snail, encountered birds and butterflies.
A rather smiley three-toed sloth – we spotted this one on the drive to the lodge One day we spotted both the endangered Amazon River Dolphins (also known as the Pink River Dolphin or Boto) and the Grey River Dolphins (Tucuxi).
Quick answers
What animals can you see in Anavilhanas National Park?
The most likely sightings are Yellow-rumped Cacique (seen by about 60% of wildlife watchers), White-throated Toucan (seen by about 60% of wildlife watchers), Boto (seen by about 50% of wildlife watchers), Black Vulture (seen by about 50% of wildlife watchers), Festive Parrot (seen by about 50% of wildlife watchers) — among 1314 recorded vertebrate species, based on citizen-science data from GBIF.
When is the best time to visit Anavilhanas National Park for wildlife?
August has the highest combined sighting rate for the park's top species in our month-by-month GBIF data. The full sighting calendar on this page shows each species' best months.
Can you see Boto in Anavilhanas National Park?
Yes — about 50% of wildlife watchers report a Boto sighting in Anavilhanas National Park, based on 39 verified sightings from GBIF citizen-science data.
Can you see Black Caiman in Anavilhanas National Park?
Yes — about 40% of wildlife watchers report a Black Caiman sighting in Anavilhanas National Park, based on 20 verified sightings from GBIF citizen-science data.
Can you see Brown-throated Sloth in Anavilhanas National Park?
Yes — about 40% of wildlife watchers report a Brown-throated Sloth sighting in Anavilhanas National Park, based on 17 verified sightings from GBIF citizen-science data.
Can you see Garden Tree Boa in Anavilhanas National Park?
Yes — about 40% of wildlife watchers report a Garden Tree Boa sighting in Anavilhanas National Park, based on 13 verified sightings from GBIF citizen-science data.
Where Wildlife Score
How good is this park for seeing wildlife?Biodiversity
Very goodHow rich is the wildlife?
Sighting
GoodHow likely to see animals?
Experience
ExcellentHow easy and pleasant is the visit?
