Kauaʻi record · kba_bird_african_silverbill

African Silverbill

Euodice cantans

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African Silverbill — Adult · OpenAI image generation; Atlas deterministic typesetting · AI-generated artwork; no third-party photograph reproduced · Image source

About African Silverbill

The African Silverbill (Euodice cantans) is a small estrildid finch, about 10–11 centimeters (4–4.5 inches) long. Adults are sandy-brown above and paler below, with fine dark patterning, a black rump and pointed black tail, and the thick blue-gray bill that gives the species its common name. Males and females look much alike, while juveniles are browner and less distinctly patterned. Its quiet contact calls can sound like tiny bells, and feeding flocks often maintain a soft chorus as they move.

Native across dry savannas, thorn scrub, grasslands, cultivated areas, and settlements in Africa and parts of the Arabian Peninsula, the species is adapted to warm, open country. It was introduced to Hawaiʻi in the 1970s. Hawaiʻi Birding Trails lists African Silverbills at several Kauaʻi birding locations spanning dry, coastal, wetland-edge, and trail environments. The birds usually feed in pairs or small flocks, taking small grass seeds from the ground or directly from seed heads and gathering readily near reliable water.

Breeding can follow favorable rainfall and seed production rather than a rigid annual season. A pair builds a compact grass nest, placing it in vegetation, a sheltered cavity or basket-like structure, or sometimes an old nest made by another bird. A typical clutch averages about five white eggs. Incubation lasts around 11 days, and the young leave the nest at roughly three weeks. They remain with the family as they learn to forage. Published sources provide useful breeding-stage timing, but dependable estimates of wild longevity remain limited.

Globally, the African Silverbill is widespread and classified as Least Concern. In Hawaiʻi it is an introduced resident rather than a native member of the island bird community. Its seed-eating habits place it within lowland grassland and disturbed-habitat food webs, but its specific ecological effects on Kauaʻi—including competition, seed movement, disease exchange, and overlap with native birds—should be described only where local evidence exists. Observations that document flock size, habitat, breeding, diet, and interactions can improve the island-level picture without assuming impacts that have not been demonstrated.

Kauaʻi evidence

Bishop Museum island checklist (version 2, 2017) lists Kauaʻi status N: naturalized resident or reintroduced population. See original island table. Hawaiʻi Birding Trails documents the species in Hawaiʻi and lists multiple Kauaʻi birding locations; natural-history details are supported by established estrildid references.

Occurrence evidence

bishop_island_checklist_2017

Names and classification

Scientific name: Euodice cantans
Common names: African Silverbill
Family: Estrildidae
Order: Passeriformes
Record type: Species

Kauaʻi occurrence and status

Kauaʻi occurrence: Kauaʻi documented: naturalized resident or reintroduced population (2017 island checklist)
Origin: Introduced
Conservation status: Least Concern globally
Evidence date: 2026-09-17
Evidence limits: Island occurrence supported by the 2017 checklist; abundance and current year presence are not established here

Habitat and ecology

Habitats: Dry grassland and scrub · Open agricultural and disturbed areas · Coastal and wetland edges near water
Food and resource needs: Primarily small grass seeds taken from the ground or directly from seed heads.
Reproduction: A compact grass nest in vegetation or another sheltered site; a typical clutch averages about five eggs, incubated for around 11 days, with fledging at roughly three weeks.
Shelter: Dense shrubs, hedges, creepers, or protected structures for nesting and communal roosting.

Threats and conservation

Threats: Potential competition, disease/parasite interface, seed movement, and urban/agricultural edge effects remain relationship questions
Conservation actions: Track as lowland introduced-bird pressure · Connect observations to habitat, abundance, disease/parasite sampling, and native-bird overlap
Monitoring: Document flock size, habitat, feeding, breeding, seasonality, and interactions with native and introduced species.
Data gaps: Update island status with dated contemporary records · Specific Kauaʻi habitat and abundance need local evidence

Process and seasonal context

Seasonal timing: Resident; breeding may track rainfall and food availability
Seasonal description: African Silverbill (Euodice cantans) is recorded as a naturalized resident or reintroduced population on Kauaʻi in the Bishop Museum's 2017 island checklist. This is a documented island occurrence, not a claim of an individual sighting in 2026.

Sources and further reading

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