Cape Verde Sparrow: where and when to see them

Also called the Iago sparrow, the Cape Verde sparrow is an endemic songbird found across much of the archipelago. Its ability to use dry scrub, farmland and settlements makes it more accessible than many island endemics. Males combine a dark crown and bib with warm chestnut and pale areas, while females are subtler. Despite its familiarity around people, it remains a distinct native species shaped by the islands' dry climate and variable resources.

Size

12-13 cm long

Weight

20-25 g

Lifespan

Not reliably established

Status

Least Concern

Cape Verde sparrows forage actively on the ground and among low vegetation, often gathering in small flocks outside nesting activity. They exploit scattered seeds and insects and may visit courtyards or agricultural areas where food is available. Nests are placed in cavities or sheltered sites, including structures. Breeding responds to favorable local conditions, particularly food availability following rain, so activity can differ between islands and years rather than following one rigid archipelago-wide calendar. They are generally sedentary, with individuals tending to remain in their natal areas. Social preening and dust bathing are common behaviours observed within their small flocks.

• It is also known as the Iago sparrow.
• Its scientific name refers to Santiago, historically called St Iago.
• It is native only to Cape Verde.
• It can nest in buildings as well as natural cavities.

Resident birds can be sought throughout the year. November to April often provides comfortable conditions for walking through settlements and dry scrub, but this is a visitor-weather window. Rainfall and subsequent food growth influence breeding, and timing can vary substantially among islands. Breeding activity is often triggered by the onset of the rainy season, typically between August and November, when food resources peak. This timing can lead to increased visibility of adult birds with food and fledglings.

Dry scrub, rocky slopes, cultivated ground, villages and urban gardens all provide habitat. Coastal settlements can support birds where vegetation, nesting cavities and food occur together. Bare shorelines without plants or buildings are less useful than nearby streets, field margins and scrub-covered slopes. They are often found in close association with human habitation, but also thrive in natural, arid landscapes. Nests are typically constructed within rock crevices, tree hollows, or artificial structures like walls and roofs.

Seeds and grains form much of the adult diet, supplemented by insects and other small invertebrates. Animal prey becomes especially important when feeding growing chicks. Birds forage around grasses, agricultural plots and settlements, but deliberate feeding is unnecessary and can encourage unhealthy concentrations. They display opportunistic foraging, readily consuming human scraps and discarded food items in villages. Beyond seeds and insects, they also consume nectar from flowering plants when available, adding to their diverse diet.

Common name

Cape Verde Sparrow

Scientific name

Passer iagoensis

Animal group

Birds

Size

12-13 cm long

Weight

20-25 g

Lifespan

Not reliably established

Status

Least Concern

Identification

Males show a black crown and bib with a conspicuous pale neck-side patch and chestnut areas, unlike the grey-crowned male house sparrow. Females and juveniles are duller, lacking the distinct black cap and bib, presenting a more uniformly streaky brown appearance. The overall size is small, typical of sparrows, with a relatively stout bill for seed cracking.