Family Trogons (Trogonidae)

Least Concern

Sumatran Trogon (Apalharpactes mackloti)


Taxonomy

French: Trogon de Sumatra German: Macklottrogon Spanish: Trogón de Sumatra
Taxonomy:

Trogon Mackloti

S. Müller

, 1835,

Mount Singgalang, Sumatra

.

Has usually been treated as race of A. reinwardtii, but differs by its smaller size (effect size for bill −3.15, tail −2.98; score 2); maroon-chestnut rump band vs all-green rump in male (3); narrower barring on wing panels in female (ns[1]); and presence of song (a high whistled wiwi wheeer-lu) vs apparently none (only a dry trill, also heard in mackloti, reported or recorded) (3)#R; but subsequent photographic evidence indicates two further characters, namely all-yellow vs strong orange flanks (latter evidently fades rapidly on specimens) (2); and brighter, paler, more extensive naked blue skin around eye (ns[2]). Monotypic.

Distribution:

Mountains of Sumatra.

Descriptive notes

30 cm. Male has yellowish-green head and bluer green upperparts, yellow-barred wingpanel, deep chestnut rump, deep metallic blue tail; yellow throat and belly, pale greyish-... read more

Voice

Penetrating hoarse “chierr, chierr” or loud “turrr”, not apparently differing from that of A.... read more

Habitat

Occupies lower storey of montane rainforest, chiefly on lower slopes, in altitude range of 750... read more

Food and feeding

Green caterpillars, grasshoppers, stick-insects, beetles, bugs; also fruits; once a lizard 10 cm long, taken from the ground.

Breeding

Mar; immatures collected in May and Jun. Eggs 1–2. No other information.

Movements

Apparently sedentary.

Status and conservation

Not globally threatened. Restricted-range species: present in Sumatra and Peninsular Malaysia EBA. Uncommon within range; formerly judged the least rare of all trogons on... read more

Recommended citation

Collar, N. (2019). Sumatran Trogon (Apalharpactes mackloti). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/55686 on 21 July 2019).