Size distinguishes this species from other niltavas; coloration is quite similar to Large Niltava, which is double the size. Male Small Niltava is bright blue with the brightest patches on the shoulder and forehead. Female is brown with a white eyering and a rufous tail and wingtips. Forages in the lower and middle levels of hilly and montane forests, usually singly. Listen for its distinctive song, a cleanly descending “wee-dee-dee.”
Exotic species flags differentiate locally introduced species from native species.
Naturalized: Exotic population is self-sustaining, breeding in the wild, persisting for many years, and not maintained through ongoing releases (including vagrants from Naturalized populations). These count in official eBird totals and, where applicable, have been accepted by regional bird records committee(s).
Provisional: Either: 1) member of exotic population that is breeding in the wild, self-propagating, and has persisted for multiple years, but not yet Naturalized; 2) rarity of uncertain provenance, with natural vagrancy or captive provenance both considered plausible. When applicable, eBird generally defers to bird records committees for records formally considered to be of "uncertain provenance". Provisional species count in official eBird totals.
Escapee: Exotic species known or suspected to be escaped or released, including those that have bred but don't yet fulfill the criteria for Provisional. Escapee exotics do not count in official eBird totals.