SPECIES

Hill Blue Flycatcher Cyornis whitei Scientific name definitions

Wich'yanan Limparungpatthanakij, Peter Clement, and David Christie
Version: 1.1 — Published August 18, 2021

Priorities for Future Research

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Introduction

It is suspected that there is an elevation shift in Hill Blue Flycatcher as a response to warming climate (41) and that its elevational range has become increasingly contracted. The population at mid-elevations of Khao Yai National Park, Thailand, may gradually be replaced by Hainan Blue Flycatcher (C. hainanus). This assumption needs further investigation.

As Hill Blue Flycatcher and its close relatives including Large Blue Flycatcher (C. magnirostris) have varied, complex repertoire of vocalizations, more sound recordings across different taxa are needed to get a better understanding of the range of variation (52, 17). More surveys should also be carried out especially in areas without confirmed records such as Garo Hills, the Khasi-Jaintia Hills, the Karbi Anglong Hills, and other hill tracts north of the Brahmaputra River, as well as in adjacent Myanmar (9), where breeding Hill Blue Flycatcher may occur alongside the similar Large Blue Flycatcher and are thought to be segregated by elevation range. More studies on breeding ecology are also needed (17).

Studies involving genome wide DNA and more extensive bioacoustics analysis are required to uncover relationships among taxa thought to belong in Hill Blue Flycatcher complex, particularly the Bornean taxa including Dayak Blue Flycatcher (C. montanus), Sunda Blue Flycatcher (C. caerulatus) (9), and the undescribed form recently discovered on Meratus Mountains (5). The presence of blue on upperparts in small numbers of female Hill Blue Flycatcher also requires explanation. It is thought to be age-related, with older birds being more bluish (19), or resulted from hybridization with similar species possessing blue tail in female plumage, such as the sympatric Indochinese Blue Flycatcher (C. sumatrensis) (7, 14).

Recommended Citation

Limparungpatthanakij , W. L., P. Clement, and D. A. Christie (2021). Hill Blue Flycatcher (Cyornis whitei), version 1.1. In Birds of the World (P. G. Rodewald, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.hibfly1.01.1