Crowned woodnymph

Crowned woodnymph
Conservation status
	; Least Concern (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Apodiformes
Family:	Trochilidae
Genus:	Thalurania
Species:	T. colombica
Binomial name
	Thalurania colombica; Bourcier, 1843
Subspecies
	T. c. colombica; T. c. fannyi; T. c. hypochlora;

The crowned woodnymph (Thalurania colombica) is a species of hummingbird in the family Trochilidae. It is found in Belize and Guatemala to northern Peru. Its natural habitats are subtropical or tropical moist lowland forest, subtropical or tropical moist montane forest, and heavily degraded former forest.

Taxonomically, the species is confusing. The AOU currently lumps the violet-crowned woodnymph and the green-crowned woodnymph together here. It also includes the taxon hypochlora (emerald-bellied woodnymph) from south-western Ecuador and adjacent Peru here. All are sometimes considered distinct by other taxonomists.

It also formerly included the Mexican woodnymph as subspecies.

Past studies have shown territorial differences between males and females. Female crowned woodnymph territories are of higher quality compared to the males. This is because females are more aggressive in defending their territory. Female territories also received more intruders contrary to males and produced higher mean nectar volume. These factors point to the fact that female crowned woodnymphs have higher quality feeding territories than males (Bertin, Wilzbach 1979).

References

BirdLife International (2016). "Thalurania colombica". The IUCN Red List of Threatened Species. IUCN. 2016: e.T22726696A94929738. doi:10.2305/IUCN.UK.2016-3.RLTS.T22726696A94929738.en. Retrieved 14 January 2018.

[1]

Bertin, Robert I, and Peggy A Wilzbach. “Sexual Differences in Feeding Territoriality of the Crowned Woodnymph, Thalurania Colombica.” The Wilson Bulletin, vol. 91, no. 2, 1979, pp. 319–321.

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[1] BirdLife International (2016). "Thalurania colombica". The IUCN Red List of Threatened Species. IUCN. 2016: e.T22726696A94929738. doi:10.2305/IUCN.UK.2016-3.RLTS.T22726696A94929738.en. Retrieved 14 January 2018.

[2] Bertin, Robert I, and Peggy A Wilzbach. “Sexual Differences in Feeding Territoriality of the Crowned Woodnymph, Thalurania Colombica.” The Wilson Bulletin, vol. 91, no. 2, 1979, pp. 319–321.