Sulphury flycatcher
species of bird

The sulphury flycatcher (Tyrannopsis sulphurea) is a passerine bird of the family Tyrannidae, the tyrant flycatchers. It is found on Trinidad and in every mainland South American country except Argentina, Chile, Paraguay, and Uruguay.
Taxonomy and systematics
The sulphury flycatcher was originally described as Muscicapa sulphurea, erroneously classifying it as an Old World flycatcher. Robert Ridgway erected genus Tyrannopsis for it in 1905.
The sulphury flycatcher is the only member of its genus and has no subspecies.
Description
The sulphury flycatcher is about 19 to 20 cm (7.5 to 7.9 in) long and weighs 48 to 61 g (1.7 to 2.2 oz). The sexes have the same plumage. Adults have a mostly dusky head with a mostly hidden orange-yellow patch in the center of the crown, an indistinct whitish supercilium, and a blackish band from the lores to the ear coverts. Their upperparts and tail are dull olive brown. Their wings are dark brownish dusky.
This brief starts where responsible research should: with the source description of “Sulphury flycatcher” as species of bird. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the science & nature register because the source frames it as species of bird. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated Nov 18, 2025. The linked authority identifier is Q907860. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1905.
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This entry incorporates text from “Sulphury flycatcher” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.