Seychelles Kestrel
Falco araeus
Unusually small kestrel with a gray head, a rufous back, unmarked buff underparts, a barred tail, and a dark “moustache” mark on the face. Found on several of the granitic Seychelles Islands. Originally found in areas of rainforest with cliffs and other rocky areas; now found in secondary scrub, cultivated areas, plantations, and towns, as well as in remnant natural habitat. Unlike other kestrels, does not hover. Call is a high, repeated “krii.” Shares general falcon shape with migrant and vagrant falcons, including Eleanora’s and Sooty Falcons, but smaller, with shorter, less pointed wings.
Identification
It is the smallest of the kestrels, 18–23 cm long with a wingspan of 40–45 cm. The wings are fairly short and rounded. The adult male's upperparts are reddish brown with black spots while the underparts are unspotted and buff. The head and rump are dark blue-grey. The tail is blue-grey with black bars. The bill is dark and the feet and cere are yellow. Females are similar to the males in appearance but are a little larger and paler. Immature birds have a brown, streaked head, spots on the breast and a buff tip to the tail.
Taxonomy
- Scientific name
- Falco araeus
- Authority
- (Oberholser, 1917)
- Order
- Falconiformes
- Family
- Falconidae
- Genus
- Falco
Range and habitat
- Migration
- Resident species
Behavior
It can be seen in forest, scrub and farmland and around rock faces and houses. It rarely hovers, instead feeding by sitting on an exposed perch and waiting for prey to pass, then swooping down to catch it. Lizards, particularly green day geckos (Phelsuma) and skinks (Mabuya), make up 92% of its diet and it will also take small birds, frogs, rats and insects.<p>The breeding territory covers just 40 hectares, the smallest of any bird of prey. Breeding occurs from August to October. The nest site is on a cliff, tree or building. It is a simple scrape with no nest material used. Two or three eggs are laid; they are white with brown markings and are incubated for 28–31 days. The young birds fledge after 35–42 days and then remain with their parents for another 14 weeks.
Conservation
The species has a population of about 800 birds and is classified as vulnerable. Lowland nests have a high failure rate of about 70-80%. It probably bred throughout the granitic central Seychelles in the past but is currently known to breed only on Mahé, Silhouette, North Island, Praslin and some small adjacent islands. It was reintroduced to Praslin in 1977.<p>Threats are thought to include habitat loss due to logging, housing development and fires as well as predation and competition by introduced species. Rats, cats and barn owls have reduced the lizard population on which the kestrels depend and they may take eggs and chicks. Barn owls and common mynas have occupied many suitable nest sites.<p>Persecution by humans is now rare. In the past, kestrels were killed because they were thought to take chickens and because they were considered to be an omen of death.
- Population trend
- stable
Photos
Distribution
Other Birds
Surucua Trogon
Trogon surrucura
Often draws attention to its presence by its song: an ascending sequence of “kwa” notes, similar to Green-backed Trogon, but faster. Two subspecies occur in Brazil, Paraguay, and northeastern Argentina with limited geographical overlap that vary in the color of the breast and eyering; the southern one has a red belly and eyering, while the northern one has a yellow belly and eyering. The males of both subspecies have a violet-blue head and breast, a green back, and a white undertail. Females have a dull gray breast and the undertail is gray with white tips. Found in the middle to upper levels of forests and woodlands.
Scaly-breasted Partridge
Tropicoperdix chloropus
A cryptically-colored ground-dweller without the bright colors and bold head patterns boasted by many of its relatives. Mottled brown overall with a grayish-white face and a speckled orange throat. Forages in dense undergrowth like other partridges, usually in mature foothill and lowland forest. Listen for its song, a series of ascending breathy whistles which culminate in an echoing series of ringing notes. As with many other forest gamebirds, very difficult to see in general; most likely encountered at staked-out blinds, or, if one is lucky, walking quietly along roadsides and clearings at dusk and dawn.
Sumatran Wren-Babbler
Napothera albostriata
With its long curved bill, this uncommon Sumatran mountain forest endemic is unique within its limited range. Forages alone or in pairs, often in dense undergrowth where it can be difficult to see; listen for its song, a well-spaced series of even, clipped whistles that sound like they should be coming from a small owl. If lucky enough to catch a glimpse, look for a streaky dark brown body, very short tail, and bright white throat.
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