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
Thamnophilus atrinucha
Black-crowned Antshrike
Salvin & Godman, 1892
Detailed Texts Multi-lang
A medium-sized passerine. Males are primarily slate-grey with a black crown, while females are more brownish-olive with a dark crown and barred wings.
Added by
Anonymous Curator
Reviewed by
Under Review
Last modified by
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).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).Thamnophilidae
GenusRank just above Species. The first word in the two-part binomial scientific name.Thamnophilus
Taxonomic AuthorityThe scientist who first formally described and published this species, followed by the year of publication.Salvin & Godman, 1892
Record Completeness
96%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.
Spring
Trophic RolePosition in the food chain: producer, herbivore, carnivore, omnivore, decomposer, or parasite.
Insectivore
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
Found in the understory of humid forests, forest edges, and second-growth woodlands from Mexico to Peru.BehaviourDaily activity patterns, movement, territory use, foraging style, and seasonal behavioral changes. Multi-lang
Strictly insectivorous, active mainly in the lower layers of the forest.Social ActivitySocial structure: whether the species is solitary, paired, or colonial; hierarchy and communication. Multi-lang
Typically found in pairs or small family groups.Feeding GuildWhat the species eats, how it forages or hunts, and its role as a consumer in the food web. Multi-lang
Insectivore.Trophic Chain DetailsSpecific interactions in local food webs: prey species, predators, competitors, and scavengers. Multi-lang
Diet consists primarily of insects and small spiders.Reproductive BehaviourMating strategies, courtship displays, nesting or spawning behavior, and parental care. Multi-lang
Constructs a cup-shaped nest in a fork of a branch; both sexes share incubation duties.Physical Measures
Length (cm)
14.0 - 16.0 cm
Weight (Grams)
20 g - 28 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 Months
Gestation / IncubationDuration from fertilization to birth (mammals) or to hatching (egg-laying species).
16 - 18
Lifespan EstimatedExpected duration of life from birth to natural death under wild conditions.
Males5 - 8 Years
Females5 - 8 Years
Sexual DimorphismPhysical differences in size, coloration, or morphology between males and females of this species.
Males Multi-lang
Males are primarily slate-grey with a black crown.
Females Multi-lang
Females are more brownish-olive with a dark crown and barred wings.
Evolutionary AdaptationsInherited traits and behaviors that improve the species' survival and reproduction in its specific environment. Multi-lang
Strong, slightly hooked bill adapted for gleaning insects from foliage.
Main ThreatsDocumented pressures reducing the population: habitat loss, hunting, disease, climate change, and invasive species. Multi-lang
Loss of habitat due to large-scale deforestation and agricultural expansion.
Interesting FactsSurprising or notable facts that highlight what makes this species unique or ecologically important. Multi-lang
Often follows mixed-species foraging flocks and sometimes army ant swarms to feed on disturbed insects.