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GALLERIES > BIRDS > PASSERIFORMES > TYRANNIDAE > WHITE-THROATED SPADEBILL [Platyrinchus mystaceus]

White-throated Spadebill Picture
 
 

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SPECIES INFO

The White-throated Spadebill, Platyrinchus mystaceus, is a tiny passerine bird in the tyrant flycatcher family.

Description

The adult White-throated Spadebill is 3.8 in (9.7 cm) long, weighs 0.33 oz (9.3 g), and has large eyes and a very short tail. The large head is distinctively marked, with a long yellowish supercilium, blackish ear coverts, yellow eyering, and a black stripe down each side of the neck. The crown has a concealed yellow crest, which is erected as a fan by the singing male. The upperparts are dark olive brown, and the underparts are buff apart from the white throat. The bill is black above and brown below, and is very broad and flat, hence the English and scientific names "spadebill" and Platyrinchus.

Sexes are similar, other than the female having a smaller crown patch, but young birds are brighter and ruddier above, lack the crown patch, and have a grey throat and breast shading to a whitish belly. They are not particularly vocal but have a sharp chweet call.

Distribution and habitat

The White-throated Spadebill breeds from Costa Rica through South America to western Ecuador, Brazil, and northeastern Argentina. It also occurs on both Trinidad and Tobago. This bird was recently found to be far more common on the Amazonian slope of the Colombian Cordillera Oriental than previously believed.

The subspecies Platyrinchus mystaceus insularis occurs only in Trinidad, Tobago and in Venezuela, other forms differing in the brightness of the underparts or the crown colour. The taxonomy of this species is uncertain, with some dubious subspecies, but also the possibility that what is usually treated as the White-throated Spadebill consists of more than one species.

This species is found in wet hill forests and will to some extent use secondary forest and other disturbed habitat. It likes habitat with thick, tangled undergrowth and medium-sized trees with a canopy height of 33-100 ft (10-30 m) such as Elaeagia (Rubiaceae) and Hieronyma oblonga (Phyllanthaceae), overgrown with epiphytes and hemiepiphytes (e.g. Clusiaceae).

Behaviour

White-throated Spadebills are solitary active birds, difficult to see as they move rapidly through the undergrowth in search of small insects, which are taken with a sudden upward-darting sally flight and audible bill-snap from under the foliage, or less often from mid-air.

Breeding

The deep cup nest is made of dead grass and plant fibres and placed low in a sapling. The typical clutch is two yellow-tinged white eggs with a rufous wreath.





                                     



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