Nesotriccus

Nesotriccus
Mouse-colored tyrannulet (Nesotriccus murinus)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Passeriformes
Family:	Tyrannidae
Genus:	Nesotriccus Townsend, CH, 1895
Type species
Nesotriccus ridgwayi [1] C.H. Townsend, 1895

Nesotriccus is a genus of Central and South American birds in the tyrant flycatcher family Tyrannidae.

Taxonomy

The genus Nesotriccus was introduced in 1895 by the American zoologist Charles Haskins Townsend with Nesotriccus ridgwayi Townsend CH 1895, the Cocos tyrannulet as the type species. ^{[2] [3]} The genus name combines the Ancient Greek νησος/nēsos meaning "island" with the genus Triccus that had been introduced in 1846 by Jean Cabanis for a tody-tyrant. ^{[4] [5]}

Species

The genus contains four species: ^[6]

Image	Scientific name	Common name	Distribution
	Nesotriccus murinus	Mouse-colored tyrannulet	from Costa Rica and Panama south to Brazil and northern Argentina
	Nesotriccus ridgwayi	Cocos tyrannulet	Cocos Island
	Nesotriccus tumbezanus	Tumbesian tyrannulet	southwest Ecuador and northwest Peru
	Nesotriccus maranonicus	Maranon tyrannulet	northeastern Peru

The Tumbesian tyrannulet was formerly considered conspecific with the widespread mouse-colored tyrannulet. The two species are visually very similar, but vocally distinct. ^[7]

References

1. "Tyrannidae". aviansystematics.org. The Trust for Avian Systematics. Retrieved 2023-07-16.
2. Townsend, Charles Haskins (1895). "Birds from Cocos and Malepo Islands with notes on petrels obtained at sea". Bulletin of the Museum of Comparative Zoology. 27: 121-126 [124].
3. Traylor, Melvin A. Jr, ed. (1979). Check-List of Birds of the World. Vol. 8. Cambridge, Massachusetts: Museum of Comparative Zoology. p. 145.
4. Jobling, James A. "Nesotriccus". The Key to Scientific Names. Cornell Lab of Ornithology. Retrieved 29 March 2025.
5. Cabanis, Jean (1845–1846). von Tschudi, Johann Jakob (ed.). Untersuchungen über die Fauna Peruana: Ornithologie (in German). St. Gallen, Switzerland: Scheitlin und Zollikofer. p. 164.
6. Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (February 2025). "Tyrant flycatchers". IOC World Bird List Version 15.1. International Ornithologists' Union. Retrieved 29 March 2025.
7. Rheindt, Frank E.; Norman, Janette A.; Christidis, Les (2008). "Genetic differentiation across the Andes in two pan-Neotropical tyrant-flycatcher species". Emu. 108 (3): 261–268. Bibcode:2008EmuAO.108..261R. doi:10.1071/mu08020. S2CID   83868957.