AnimaliaHighest rank in taxonomy. Groups all life into domains: Animalia, Plantae, Fungi, etc.IUCN LCInternational Union for Conservation of Nature — the world authority on species extinction risk, using standardized criteria. — Least Concern — widespread and abundant; not at immediate risk of extinction.In ProgressCurrent stage of this record in the editorial review workflow. Recent Sighting
Leptophis ahaetulla
Parrot Snake
(Linnaeus, 1758)
Detailed Texts Multi-lang
Arboreal snake with an extremely slender, elongated, and laterally compressed body. Its head is distinctive, with a slightly obtuse snout and proportionally large eyes with round pupils, ideal for its diurnal behavior. The coloration is spectacular: bright green, bluish, or even bronze tones on the dorsum, often with a black or bronze line crossing the eye. Its belly is usually a paler green, yellowish, or cream, providing perfect disruptive camouflage in the canopy.
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Julia Trouin
TaxonomyBiological classification ranks placing this species within the tree of life, from Kingdom down to Genus.
PhylumRank below Kingdom. Groups organisms sharing a fundamental body plan (e.g., Chordata = vertebrates and some invertebrates).Chordata
ClassRank below Phylum. Subdivides by structural traits (e.g., Mammalia, Aves, Reptilia, Insecta).Reptilia
OrderRank below Class. Groups related families sharing common ancestry (e.g., Carnivora, Primates).Squamata
FamilyRank below Order. Groups closely related genera (e.g., Felidae = cats, Canidae = dogs).Colubridae
GenusRank just above Species. The first word in the two-part binomial scientific name.Leptophis
Taxonomic AuthorityThe scientist who first formally described and published this species, followed by the year of publication.(Linnaeus, 1758)
Record Completeness
95%Coming soon
Ecology & StatusHow this species lives: habitat preferences, diet, behavior, population status, and role in its ecosystem.
OriginWhether the species is native (evolved here), endemic (found only here), or introduced by human activity.
Native
Population TrendDirection of change in population size over time: increasing, stable, decreasing, or unknown.
Stable
Breeding SeasonTime of year when this species typically reproduces or flowers.
Year Round
Trophic RolePosition in the food chain: producer, herbivore, carnivore, omnivore, decomposer, or parasite.
Carnivore
Recent SightingsWhether this species has been observed in the wild in Costa Rica within recent years.
Yes
Habitat SummaryOverview of the specific ecosystems and environments where this species is found in Costa Rica. Multi-lang
Inhabits diverse Neotropical ecosystems, including tropical rainforests, secondary forests, gallery forests, and wooded areas near water bodies. It ranges from Mexico to northern Argentina. It is a strictly arboreal and heliophilic species, spending most of its time in dense vegetation, from the understory to the upper canopy.BehaviourDaily activity patterns, movement, territory use, foraging style, and seasonal behavioral changes. Multi-lang
It is a primarily diurnal and active reptile. It spends the mornings actively searching for prey through the arboreal strata, performing rapid and erratic movements that allow it to locate lizards. It moves with great fluidity, being able to transition between branches at an impressive speed. During the nights, it rests coiled on branches covered by vegetation, seeking safety among dense foliage.Social ActivitySocial structure: whether the species is solitary, paired, or colonial; hierarchy and communication. Multi-lang
It is a solitary animal. It does not show gregarious behaviors or group defense. Its interaction with other individuals is limited exclusively to reproductive encounters or minimal territorial disputes. It relies entirely on its individual mimicry to go unnoticed.Feeding GuildWhat the species eats, how it forages or hunts, and its role as a consumer in the food web. Multi-lang
Carnivore specialized in small vertebrates. It feeds primarily on lizards of the genus Anolis, small tree frogs, and occasionally bird eggs. It uses its speed to intercept fast prey found on vertical surfaces or thin branches.Trophic Chain DetailsSpecific interactions in local food webs: prey species, predators, competitors, and scavengers. Multi-lang
Secondary consumer and predator of lizards and small amphibians. Due to its agility and speed, it exerts constant hunting pressure on populations of Anolis and small tree frogs. In turn, it is part of the diet of raptors (diurnal and nocturnal), ophiophagous snakes, and small mammals that inhabit the canopy.Reproductive BehaviourMating strategies, courtship displays, nesting or spawning behavior, and parental care. Multi-lang
Oviparous species. Courtship and mating take place mainly during the rainy season, when food resources are abundant. The female lays between 2 and 10 eggs in protected cavities, tree hollows, or dense leaf litter where humidity is constant. Embryonic development depends directly on ambient temperature. After hatching, the young are fully independent.Physical Measures
Length (cm)
100.0 - 150.0 cm
Weight (Grams)
100 g - 250 g
Offspring per cycleTypical number of young (live births, eggs, or seeds) produced by one adult in a single reproductive event or breeding season.2 - 10
Sexual DimorphismObservable physical differences between males and females of the same species (e.g., size, coloration, features).No
Lifespan
Sexual MaturityAge at which the individual becomes capable of reproducing for the first time.
2 - 3 Years
Gestation / IncubationDuration from fertilization to birth (mammals) or to hatching (egg-laying species).
45 - 60
Lifespan EstimatedExpected duration of life from birth to natural death under wild conditions.
Males8 - 12 Years
Females8 - 12 Years
Evolutionary AdaptationsInherited traits and behaviors that improve the species' survival and reproduction in its specific environment. Multi-lang
Agility and Displacement Speed: It possesses highly specialized musculature that allows it to move with astonishing speed among thin branches, using its slender body like a whip to launch itself through the foliage.
Heliophilia and Active Thermoregulation: As a diurnal reptile, it depends on solar radiation to maximize its metabolic efficiency, selecting patches of filtered sunlight to raise its body temperature and optimize its hunting capabilities.
Main ThreatsDocumented pressures reducing the population: habitat loss, hunting, disease, climate change, and invasive species. Multi-lang
Fragmentation and Deforestation: The removal of forest corridors and the loss of riparian vegetation drastically reduce the microhabitats available for its mobility and feeding.
Pesticide Contamination: Intensive plantations using agrochemicals indirectly affect the snake by drastically reducing the populations of its prey (amphibians and lizards), in addition to the potential bioaccumulation of toxins.
Interesting FactsSurprising or notable facts that highlight what makes this species unique or ecologically important. Multi-lang
Active Defense via Inflation: When threatened, it can inflate its neck to reveal areas of bright skin between the scales, acting as an intimidating warning signal to potential predators.
Hunting with Opisthoglyphous Dentition: Although considered mildly venomous (low-toxicity venom for humans), it uses its rear fangs to quickly immobilize agile prey like lizards.