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Spotted Jewel-babbler Ptilorrhoa leucosticta Scientific name definitions

Walter Boles
Version: 1.0 — Published March 4, 2020
Text last updated September 18, 2017

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Field Identification

20 cm; 49–51 g. Nominate race has crown and nape dark chestnut, lores and chin  black; narrow black stripe down centre of throat, broadening on upper breast into triangular black patch finely spotted with white; side of throat and neck side below eye white; upperparts dull olive-green, remiges dark brownish-olive, primary coverts dull olive-green; median and greater upperwing-coverts black, tipped white (forming double row of rounded white spots on folded wing); tail olive-brown, outer two feather pairs black with broad white tips; underparts dull ashy blue; iris dark brown; bill black; legs brown to light brown. Sexes alike. Juvenile is brown, washed with rufous-olive, paler on underparts, has upperwing-coverts tipped pale rufous. Race mayri is similar to nominate, but back chestnut, and spotting on upper breast reduced; centralis is like previous, but breast greenish-olive; amabilis resembles nominate, but underparts mostly blue; loriae lacks spots on black upper breast, has breast and flanks dull greenish, belly blue; sibilans is similar to last, but crown brighter chestnut and breast with distinct olive-green band; menawa is also similar, but underparts extensively washed olive, covering most of breast and flanks, crown sometimes darker, back brighter.

Systematics History

Editor's Note: This article requires further editing work to merge existing content into the appropriate Subspecies sections. Please bear with us while this update takes place.

Seven subspecies recognized.

Subspecies


SUBSPECIES

Ptilorrhoa leucosticta leucosticta Scientific name definitions

Distribution

mountains of Vogelkop, in NW New Guinea.

SUBSPECIES

Ptilorrhoa leucosticta mayri Scientific name definitions

Distribution

Wandammen Mts, S of Geelvink Bay (NW New Guinea).

SUBSPECIES

Ptilorrhoa leucosticta centralis Scientific name definitions

Distribution

Weyland Mts, Nassau Range and Oranje Range, E possibly to Star Mts (WC New Guinea).

SUBSPECIES

Ptilorrhoa leucosticta sibilans Scientific name definitions

Distribution

Cyclops Mts and (perhaps this race) Foja Mts, on N coast of New Guinea.

SUBSPECIES

Ptilorrhoa leucosticta menawa Scientific name definitions

Distribution

Bewani Mts (Mt Menawa), in C North Coastal Range of New Guinea.

SUBSPECIES

Ptilorrhoa leucosticta amabilis Scientific name definitions

Distribution

Saruwaged Mts, in Huon Peninsula (NE New Guinea).

SUBSPECIES

Ptilorrhoa leucosticta loriae Scientific name definitions

Distribution

Mt Hagen and Schraderberg E through mountains of SE New Guinea.

Distribution

Editor's Note: Additional distribution information for this taxon can be found in the 'Subspecies' article above. In the future we will develop a range-wide distribution article.

Habitat

Mountain forest at c. 1200–2700 m; overlaps with P. castanonota at 1200–1450 m.

Movement

Probably sedentary.

Diet and Foraging

Insects and other small invertebrates, also small frogs; occasionally small fruit. Terrestrial; forages by turning over leaves while walking along on ground.

Sounds and Vocal Behavior

Song a level series of 7–30 short, low, bell-like whistles . Alarm call a squeaky rasping and high-pitched note followed by hissing; other calls include faint “tsip” and single or several rather explosive notes.

Breeding

Nests with eggs in late Sept and mid-Oct and nestlings in mid-Aug and early Oct, indicating breeding during latter half of dry season, at least. Nest a cup-shaped structure of hair-like rootlets, moss and old leaves, lined with leaf skeletons, built on foundation of sticks, ferns and dead leaves; placed 60–90 cm above ground in base of tree or tree-fern. Clutch 2 eggs, pinkish-buff, rich pink or light brown, zone of russet spots and blotches at larger end, sparsely spotted over remainder, size 27·4–31·7 × 21–23·4 mm; no information on incubation period; nestlings fed by both parents, up to 11 feeding visits per hour; no information on duration of nestling period.
Not globally threatened. Not uncommon, but infrequently seen.
Distribution of the Spotted Jewel-babbler - Range Map
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  • Year-round
  • Migration
  • Breeding
  • Non-Breeding
Distribution of the Spotted Jewel-babbler

Recommended Citation

Boles, W. (2020). Spotted Jewel-babbler (Ptilorrhoa leucosticta), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.spjbab1.01
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