Costa Rica Species
Psarocolius montezuma
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

Psarocolius montezuma

Montezuma oropendola

(Lesson, 1830)

Detailed Texts Multi-lang
Iconic tropical bird known for its hanging nests and bubbling song.

Added by

Gerardo Venegas

Reviewed by

Under Review

Last modified by

Gerardo Venegas

Other Names (Global)Regional and multilingual names used for this species across different countries and languages.

Oropéndola mayorZacuanMontezuma oropendolaOropéndola de Moctezuma

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).Aves
OrderRank below Class. Groups related families sharing common ancestry (e.g., Carnivora, Primates).Passeriformes
FamilyRank below Order. Groups closely related genera (e.g., Felidae = cats, Canidae = dogs).Icteridae
GenusRank just above Species. The first word in the two-part binomial scientific name.Psarocolius
Taxonomic AuthorityThe scientist who first formally described and published this species, followed by the year of publication.(Lesson, 1830)
Record Completeness
97%
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.

Dry Season

Trophic RolePosition in the food chain: producer, herbivore, carnivore, omnivore, decomposer, or parasite.

Omnivore

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

Tropical forest canopy, forest edges, and old plantations.

BehaviourDaily activity patterns, movement, territory use, foraging style, and seasonal behavioral changes. Multi-lang

Males perform an acrobatic display by bowing forward while singing.

Social ActivitySocial structure: whether the species is solitary, paired, or colonial; hierarchy and communication. Multi-lang

Live in noisy colonies where a single dominant male usually mates with the females.

Feeding GuildWhat the species eats, how it forages or hunts, and its role as a consumer in the food web. Multi-lang

Omnivorous; feeds on fruits, nectar, insects, and small vertebrates.

Trophic Chain DetailsSpecific interactions in local food webs: prey species, predators, competitors, and scavengers. Multi-lang

Secondary consumer; helps control insect populations and disperse seeds.

Reproductive BehaviourMating strategies, courtship displays, nesting or spawning behavior, and parental care. Multi-lang

Females weave nests from plant fibers that hang from the outer branches of trees.

Physical Measures

Length (cm)

38.0 - 50.0 cm

Weight (Grams)

230 g - 520 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 - 2
Sexual DimorphismObservable physical differences between males and females of the same species (e.g., size, coloration, features).Yes

Lifespan

Sexual MaturityAge at which the individual becomes capable of reproducing for the first time.

12 - 24 Months

Gestation / IncubationDuration from fertilization to birth (mammals) or to hatching (egg-laying species).

15

Lifespan EstimatedExpected duration of life from birth to natural death under wild conditions.
Males10 - 15 Years
Females10 - 15 Years

Sexual DimorphismPhysical differences in size, coloration, or morphology between males and females of this species.

Males Multi-lang

Much larger than the female, with a prominent pink wattle and dominant behavior.

Females Multi-lang

Considerably smaller and responsible for building the hanging nests.

Evolutionary AdaptationsInherited traits and behaviors that improve the species' survival and reproduction in its specific environment. Multi-lang

Extreme size dimorphism for reproductive competition among males.
Specialized bill with a sharp tip for manipulating fruits and capturing small prey.

Main ThreatsDocumented pressures reducing the population: habitat loss, hunting, disease, climate change, and invasive species. Multi-lang

Loss of suitable nesting trees due to intense agriculture.

Interesting FactsSurprising or notable facts that highlight what makes this species unique or ecologically important. Multi-lang

Nests can measure up to 1.8 meters long, resembling giant baskets.
Their song is often described as a sound of bubbling water or a liquid flute.

External ReferencesScientific publications, field guides, and databases that document this species or area.