Juan Fernandez Petrel
Pterodroma externa
Large, rather long-tailed, and relatively big-billed petrel of offshore subtropical and tropical waters in the eastern and central Pacific; not seen from mainland. Named for Juan Fernandez Islands in Chile, where the species breeds. Main identification features are relatively large size, gleaming white underparts with small black “comma” on bend of underwing, and dark cap blending into gray of hindneck. Upperparts show darker “M” pattern common to many petrels. Much larger than Masatierra Petrel and other small petrels.
Taxonomy
- Scientific name
- Pterodroma externa
- Authority
- (Salvin, 1875)
- Order
- Procellariiformes
- Family
- Procellariidae
- Genus
- Pterodroma
Range and habitat
- Breeding range
- PO : montane Alejandro Selkirk (=Mas Afuera, Juan Fernandez Is., far w of c Chile)
- Non-breeding range
- to tropical Pacific around main Hawaiian Is.
- Migration
- Complete migrants
Conservation
- Population trend
- stable
Photos
Distribution
Other Birds
Harris's Hawk
Parabuteo unicinctus
Dark hawk found in deserts and scrubby open woodland. Brown overall with bright rufous shoulders and thighs. Tail black with white tip and white base. Immatures have variable white markings on underparts. Unique among raptors for its social behavior; nests and hunts in groups. Feeds on mammals.
Dark-breasted Spinetail
Synallaxis albigularis
Handsome spinetail of grassy areas in lowlands and foothills. Gray with chestnut crown and shoulders. Black throat spot is bordered by a white “V”. Skulks in overgrown pastures, tangled clearings, and dense scrub on young river islands, but avoids forest. Usually hard to see unless it is actively defending its territory. Song is a sharp “pik” immediately followed by a quick, rattling trill.
Eyebrowed Heleia
Heleia superciliaris
A small olive songbird with a bold whitish eyebrow and eye-ring. Underparts dull yellow. Juveniles duller with an ill-defined eyebrow. Parties found within forest, forest edge, and nearby scrub in foothills and mountains, attending mixed-species flocks. Restricted to Flores and Sumbawa. Lacks a crest and has a uniformly-colored dark crown, unlike Dark-crowned White-eye, and also shows a longer pale brow and a duller yellow underside. Song is a short, high-pitched warble. Calls include repetitive “pew-pew-pew” and wobbly “chlew” notes.
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