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Broad-billed fairywren
Conservation status
Least Concern  (IUCN 3.1)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Passeriformes
Family:	Maluridae
Genus:	Chenorhamphus
Species:	C. grayi
Binomial name
Chenorhamphus grayi (Wallace, 1862)
Synonyms
Todopsis grayi Malurus grayi

The broad-billed fairywren (Chenorhamphus grayi) is a species of bird in the Australasian wren family, Maluridae. It is found in northern and north-western New Guinea. Its natural habitat is subtropical or tropical moist lowland forests.

Taxonomy and systematics

The broad-billed fairywren was originally described in the obsolete genus Todopsis. It was formerly lumped together with Campbell's fairywren in the genus Malurus until a 2011 analysis of mitochondrial and nuclear DNA showed high divergence between the two subspecies resulting in them being re-split into separate species. The study also found them to lie in a clade with the genera Sipodotus and Clytomyias leading to their subsequent re-classification in their own genus, Chenorhamphus. Alternate names for the broad-billed fairywren include broad-billed wren and broad-billed wren-warbler.

Behaviour and ecology

Diet

Little is known about the diet of the broad-billed fairywren, although it is thought to be insectivorous. Like other New Guinean fairywrens, the species forages on the ground and in dense undergrowth, especially around exposed tree roots. Feeding is done in the lower forest, up to 5 m.

Breeding

Males with enlarged testicles have been collected in July. Fledglings have also been found in February.

The only known nest was at a height of 50 cm (20 in) in primary forest in a 20 m (66 ft) wide ridge. It was a cavity in moss that covered a sapling's trunk, and was 8 cm (3.1 in) deep and 5 cm (2.0 in) wide. It was lined with dry needles, along with strips of bark, and contained two chicks in October.

References

1. BirdLife International (2017). "Chenorhamphus grayi". IUCN Red List of Threatened Species. 2017: e.T22703715A118652681. doi:10.2305/IUCN.UK.2017-3.RLTS.T22703715A118652681.en. Retrieved 17 November 2021.
2. Driskell, Amy C.; Norman, Janette A.; Pruett-Jones, Stephen; Mangall, Elizabeth; Sonsthagen, Sarah; Christidis, Les (2011). "A multigene phylogeny examining evolutionary and ecological relationships in the Australo-papuan wrens of the subfamily Malurinae (Aves)". Molecular Phylogenetics and Evolution. 60 (3): 480–85. doi:10.1016/j.ympev.2011.03.030. PMID 21466855.
3. "Taxonomy Version 2 « IOC World Bird List". www.worldbirdnames.org. Retrieved 2017-11-14.
4. ^ Rowley, Ian; Russell, Eleanor; Kirwan, Guy M. (2021-02-26). Keeney, Brooke K (ed.). "Broad-billed Fairywren (Chenorhamphus grayi)". Birds of the World. doi:10.2173/bow.brbfai1.02.

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• IUCN Red List least concern species
• Chenorhamphus
• Birds of northern New Guinea
• Birds described in 1862
• Meliphagoidea stubs