Millerbird
Acrocephalus familiaris
A small old-world warbler that occurs only on Nihoa and Laysan in the Northwestern Hawaiian Islands. Unlikely to be confused with any other species; the only other passerines on those islands are finches. Does not occur on the main Hawaiian Islands. Prefers dense, low vegetation. Usually secretive and hard to see well, but males sometimes sing from an exposed perch. Song and calls are harsh chirps and churring.
Taxonomy
It has two subspecies, A. f. kingi and A f. familiaris. The nominate subspecies, the Laysan millerbird, became extinct sometime between 1916 and 1923. The former, the critically endangered Nihoa millerbird, remains the only race left, inhabiting the small island Nihoa in Hawaiʻi, though it has since been reintroduced to Laysan. It is the only Old World warbler to have colonised Hawaiʻi, although there is no fossil evidence that the species ever had a distribution beyond these two islands.
- Scientific name
- Acrocephalus familiaris
- Authority
- (Rothschild, 1892)
- Order
- Passeriformes
- Family
- Acrocephalidae
- Genus
- Acrocephalus
Range and habitat
- Migration
- Resident species
Conservation
- Population trend
- unknown
Photos
Distribution
Bird Calls
Other Birds

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Pytilia melba
A vividly colored waxbill with a red bill, rump, and tail and an olive-green back and wings. The male’s forehead and throat are orange-red, and it sports a bright breast band which varies in color geographically. The female lacks the breast band and has a gray head. Pairs and small flocks are resident in arid thorn savanna, dry woodland, and cultivation, where they feed on the ground for seeds and insects and fly into trees when disturbed. The species may join mixed-species flocks. The similar Orange-winged Pytilia differs from the larger Green-winged Pytilia by having diagnostic golden-yellow edges to the wing feathers.

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Chrysuronia lilliae
Rare, endangered, and poorly known hummingbird restricted to mangroves and adjacent scrubby areas along the Colombian coast. Male has sapphire underparts extending from throat all the way to belly, and lacks the distinct hood typical of the more common Sapphire-throated Hummingbird. Female’s plumage is not known with certainty, but likely resembles female Sapphire-throated Hummingbird, which has white central underparts bordered by green flanks, and white tail tips.

Eurasian Kestrel
Falco tinnunculus
Small falcon with distinctive male plumage: gray head, rusty back, gray tail with broad black tip. Female is brownish above, with barring on the back, wings, and tail. Note rather pointed wingtips (unlike rounded wings of Accipiter hawks), and distinct dark spotting on the breast. Inhabits open and lightly wooded country, farmlands, grasslands, and heathlands; often seen over grassy areas beside roads and at airports. Perches on wires and posts, and typically hunts by hovering, at times fairly high overhead. Very similar to Lesser Kestrel.
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