Black-and-white triller

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Black-and-white triller
Naturalis Biodiversity Center - RMNH.AVES.123858 2 - Lalage melanoleuca subsp. - Campephagidae - bird skin specimen.jpeg
A specimen from Naturalis Biodiversity Cente
Black and White Triller.jpg
A Southern black-and-white triller in Sultan Kudarat
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Campephagidae
Genus: Lalage
Species:
L. melanoleuca
Binomial name
Lalage melanoleuca
(Blyth, 1861)

The black-and-white triller (Lalage melanoleuca) is a species of bird in the family Campephagidae. It is endemic to the Philippines. Its natural habitat is tropical moist lowland forests.

Contents

Description

EBird describes the bird as "A medium-sized bird of lowland and foothill forest canopy. Has a black tail with white corners, black wings with a large white patch, and a white rump. Male has a black crown and back and entirely white underparts. Females have a gray crown and back. Similar to Pied Triller, but lacks the white brow and is found in forest rather than open habitats. Song consists of a 1- to 3-syllabled whistled phrase repeated 5-20 times in a row." [2]

They are sexually dimorphic in which males have the eponymous black bib and overall darker plumage with the females lighter and having "bibs" of either gray or white depending on the subspecies. [3]

Subspecies

Two subspecies are recognized:

No known differences between the males of Southern and Northerns. Northern females have white underparts with a barred throat and chest, while southern females have a gray throat and chest with faint barring below.

The Handbook of the Birds of the World and International Union for Conservation of Nature recognize these 2 subspecies as separate species. [4]

Ecology and behavior

Its diet has not yet been recorded but it is presumed to feed on insects. Occurs singly, in small groups or with mixed-species flocks of other medium sized birds like Bar-bellied cuckooshrike, Philippine oriole, Black-bibbed cicadabird and Philippine leafbird. Typically forages in the canopy.

There is barely any information about its breeding habits and nesting. Breeding season believed to fall around March to May as juveniles have been seen in May. [5]

Habitat and conservation status

Its natural habitats at tropical moist lowland primary forest and secondary forest up to 1,000 meters above sea level for the Northern subspecies and 600 meters above sea level for the Southern.

The IUCN Red List has assessed this bird, both Southern and Northern, as least-concern species although it is uncommon in all parts of its range and is poorly known. More studies are recommended to better understand this species, population and conservation status. [6] [7]

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References

  1. ↑ BirdLife International (2016). "Lalage melanoleuca". IUCN Red List of Threatened Species . 2016: e.T103702973A94081833. doi: 10.2305/IUCN.UK.2016-3.RLTS.T103702973A94081833.en . Retrieved 12 November 2021.
  2. ↑ "Black-and-white Triller - eBird". ebird.org. Retrieved 2024-09-04.
  3. ↑ Allen, Desmond (2020). Birds of the Philippines. Barcelona: Lynx and Birdlife International Fieldguides. pp. 242–243.
  4. ↑ Taylor, Barry; de Juana, Eduardo (2020). "Black-bibbed Cuckooshrike (Edolisoma mindanense), version 1.0". Birds of the World. doi:10.2173/bow.bkbcus1.01. ISSN   2771-3105.
  5. ↑ Taylor, Barry; del Hoyo, Josep; Kirwan, Guy M.; Collar, Nigel (2020). "Black-and-white Triller (Lalage melanoleuca), version 1.0". Birds of the World. doi:10.2173/bow.bawtri1.01. ISSN   2771-3105.
  6. ↑ IUCN (2016-10-01). Lalage melanoleuca: BirdLife International: The IUCN Red List of Threatened Species 2016: e.T103702973A94081833 (Report). International Union for Conservation of Nature. doi:10.2305/iucn.uk.2016-3.rlts.t103702973a94081833.en.
  7. ↑ IUCN (2016-10-01). Lalage minor: BirdLife International: The IUCN Red List of Threatened Species 2016: e.T103702994A104074548 (Report). International Union for Conservation of Nature. doi:10.2305/iucn.uk.2016-3.rlts.t103702994a104074548.en.


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