Family Tityras and allies (Tityridae)


Pacific Royal Flycatcher (Onychorhynchus occidentalis)


French: Porte-éventail pâle German: Gelbbrustkronenbekarde Spanish: Mosquero real del Pacífico

Muscivora occidentalis

P. L. Sclater

, 1860,

Babahoyo, Los Ríos, Ecuador


Usually treated as conspecific with O. coronatus, O. mexicanus and O. swainsoni. Differs from coronatus in its bright rufous vs very dark olive-brown head sides, neck sides, mantle and back (3); plain rufous vs densely olive-barred breast (3); cinnamon vs dark, more chestnut-tinged brown tail (2); paler red crest (ns[1]); larger size (effect size for longer tail in males 4.58 [but n=9 for present species]; score 2). Differs from mexicanus in its rufous vs dark olive-brown head sides, neck sides, mantle and back (3); plain rufous vs olive-spotted or olive-barred breast (3); white-tinged pale rusty vs strongly white chin and throat (2). Differs from swainsoni in its much longer bill (effect size for males 6.25 [but n=8 for present species, n=4 for swainsoni], allow 3); rufous vs dull chestnut head sides, neck sides, mantle and back (2); bright pale rufous vs rich smoky-rufous underparts (2); and in latter’s relatively distinctive call (vocal differences between taxa otherwise weak or non-existent, so far as known). Monotypic.


W Ecuador (patchily from Esmeraldas S to El Oro) and extreme NW Peru (Tumbes).

Descriptive notes

15–17·5 cm; 14·2 g. See Taxonomy; within limited range is very distinctive; crest largely red in male, orange in female (like in other Onychorhynchus). Upperparts... read more


Most frequently heard vocalization is a loud plaintive “pee-yuk!”, given in contact and perhaps... read more


Inhabits humid and deciduous lowland forest, apparently favouring semi-deciduous forest in ravines... read more

Food and feeding

Almost nothing published concerning diet, although presumably similar to that of other Onychorhynchus. Forages from the... read more


Nests found Jan–Apr (i.e. the wet season), with a juvenile collected in May (all in Ecuador). In display, performed during courtship and... read more


Resident, although local movements have been suggested at some sites subject to year-round... read more

Status and conservation

VULNERABLE. Scarce to rare, occurs naturally at low densities and total population within its c. 7500 km² range (overall Extent of Occurrence is 64,700 km²) in W Ecuador and... read more

Recommended citation

del Hoyo, J., Collar, N. & Kirwan, G.M. (2019). Pacific Royal Flycatcher (Onychorhynchus occidentalis). 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 on 26 June 2019).