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
Sporophila torqueola
White-collared Seedeater
Bonaparte, 1850
Detailed Texts Multi-lang
It is a small passerine with a markedly conical, short, and thick bill, specialized for cracking hard seeds. The adult male features a glossy black head with a characteristic white or cinnamon semi-collar extending from the sides of the neck toward the chest. The back varies from dark gray to blackish with conspicuous white wing patches visible in flight, while the underparts display soft buffy or cinnamon tones. The female exhibits a completely cryptic plumage of uniform olive-brown on the upperparts and a pale buff or yellowish tone on the belly, lacking any striking head markings. The eyes are dark and the legs are black.
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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).Thraupidae
GenusRank just above Species. The first word in the two-part binomial scientific name.Sporophila
Taxonomic AuthorityThe scientist who first formally described and published this species, followed by the year of publication.Bonaparte, 1850
Record Completeness
94%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.
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Trophic RolePosition in the food chain: producer, herbivore, carnivore, omnivore, decomposer, or parasite.
Herbivore
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
It primarily inhabits open areas, pastures, agricultural fields, roadsides, shrubby savannas, and regenerating forest clearings in the Mesoamerican region, ranging from southern Texas and Mexico to Costa Rica and Panama. It is common in lowlands and middle elevations, adapting exceptionally well to anthropogenic environments such as sugar cane fields and cattle pastures. It prefers sunny areas with abundant growth of wild grasses.BehaviourDaily activity patterns, movement, territory use, foraging style, and seasonal behavioral changes. Multi-lang
It is a gregarious bird during the non-breeding season, forming large flocks that roam pastures in search of food. Its flight is undulating and over short distances. Males establish small territories during the breeding season, defending them through continuous and melodious songs delivered from the tops of bushes or wire fences.Social ActivitySocial structure: whether the species is solitary, paired, or colonial; hierarchy and communication. Multi-lang
It shows high gregariousness during the dry months of the year, forming monospecific or mixed associations with other seedeaters (genera Tiaris and Volatinia) to feed in areas of abundant pastures. During the nesting season, pairs isolate themselves and display moderate territoriality, although they may nest at relatively short distances from one another if food is extremely abundant.Feeding GuildWhat the species eats, how it forages or hunts, and its role as a consumer in the food web. Multi-lang
Specialized granivore. It feeds almost exclusively on small seeds from a wide variety of grasses and wild herbs (such as Panicum and Paspalum). During the breeding season, it opportunistically captures small insects to feed to the nestlings.Trophic Chain DetailsSpecific interactions in local food webs: prey species, predators, competitors, and scavengers. Multi-lang
It acts primarily as a specialized primary consumer through seed predation. By consuming vast quantities of grasses, it influences the population dynamics of these herbaceous plants. It occasionally consumes insects, acting as a secondary consumer. It is frequent prey for small falcons, open-country arboreal snakes, and medium-sized carnivorous mammals.Reproductive BehaviourMating strategies, courtship displays, nesting or spawning behavior, and parental care. Multi-lang
The nest is a delicate, compact, and thin open cup structure, built primarily by the female using fine rootlets, dry grass stems, and horsehair or other mammalian hair, often so thin that the eggs are visible from below. It is located between 0.5 and 2.5 meters off the ground in a dense shrub or tall weeds. She lays 2 to 3 grayish-white or pale bluish eggs speckled with brown. Incubation is done solely by the female for 12 to 13 days. Both parents feed the nestlings a mixture of crushed seeds and soft insects for 10 to 11 days until they fledge.Physical Measures
Length (cm)
10.5 - 12.5 cm
Weight (Grams)
8 g - 11 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 - 3
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.
1 Years
Gestation / IncubationDuration from fertilization to birth (mammals) or to hatching (egg-laying species).
12 - 13
Lifespan EstimatedExpected duration of life from birth to natural death under wild conditions.
Males4 - 6 Years
Females4 - 6 Years
Sexual DimorphismPhysical differences in size, coloration, or morphology between males and females of this species.
Males Multi-lang
It presents a very distinctive and high-contrast breeding plumage. The head, crown, and cheeks are deep jet-black, strikingly interrupted by a pure white or cream semi-collar crossing the nape or sides of the neck. The breast and abdomen display variable tones between pale buff and cinnamon. It possesses a very prominent white wing speculum.
Females Multi-lang
Completely drab, dull, and cryptic, designed by evolution to blend in with the dry grasses and bushes where it nests. Its plumage is predominantly light olive-brown on the back, turning buffy or pale yellow on the underparts, with no trace of the male's black and white collar.
Evolutionary AdaptationsInherited traits and behaviors that improve the species' survival and reproduction in its specific environment. Multi-lang
Specialized Bill Morphology: Its robust and culmen-curved bill functions as a high-precision mechanical pressure clamp, allowing the bird to crush and strip away the protective husk of grass seeds within fractions of a second.
Opportunistic Dietary Flexibility: It possesses the ability to temporarily shift its diet toward the intensive consumption of small flying insects during peak rainfall cycles, ensuring the protein intake required for breeding.
Main ThreatsDocumented pressures reducing the population: habitat loss, hunting, disease, climate change, and invasive species. Multi-lang
Intensive Use of Agrochemicals: The massive application of herbicides and synthetic pesticides in monocultures drastically reduces the availability of native grasses and poisons their primary food sources.
Illegal Cage-Bird Trade: Due to its melodious song and the attractiveness of the male, it is illegally captured using glue traps or mist nets to be commercialized as a pet in local markets.
Interesting FactsSurprising or notable facts that highlight what makes this species unique or ecologically important. Multi-lang
Polyphonic Song and Learning: Young males are capable of mimicking fragments of songs from other bird species inhabiting their environment, enriching their repertoire to impress females during courtship.
Acrobatic Feeding: They habitually perch directly on the slender stems of grasses, using their body weight to bend the plant to the ground so they can comfortably extract mature seeds from the apex.