Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Superclassis: Sarcopterygii
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Archosauromorpha
Cladus: Crurotarsi
Divisio: Archosauria
Cladus: Avemetatarsalia
Cladus: Ornithodira
Subtaxon: Dinosauromorpha
Cladus: Dinosauriformes
Cladus: Dracohors
Cladus: Dinosauria
Ordo: Saurischia
Cladus: Eusaurischia
Cladus: Theropoda
Cladus: Neotheropoda
Cladus: Averostra
Cladus: Tetanurae
Cladus: Avetheropoda
Cladus: Coelurosauria
Cladus: Tyrannoraptora
Cladus: Maniraptoromorpha
Cladus: Maniraptoriformes
Cladus: Maniraptora
Cladus: Pennaraptora
Cladus: Paraves
Cladus: Eumaniraptora
Cladus: Avialae
Infraclassis: Aves
Cladus: Euavialae
Cladus: Avebrevicauda
Cladus: Pygostylia
Cladus: Ornithothoraces
Cladus: Euornithes
Cladus: Ornithuromorpha
Cladus: Ornithurae
Cladus: Carinatae
Parvclassis: Neornithes
Cohors: Neognathae
Cladus: Neoaves
Ordo: Coraciiformes
Familia: Todidae
Genus: Todus
Species: Todus angustirostris
Name
Todus angustirostris Lafresnaye, 1851
References
Revue et Magasin de Zoologie Pure et Appliqué (2) 3 p. 478
Vernacular names
čeština: Todi úzkozobý
English: Narrow-billed Tody
español: Barrancolí picofino
Türkçe: İnce gagalı todi
The narrow-billed tody (Todus angustirostris) is a species of bird in the family Todidae. It is one of two Todus species endemic to Hispaniola, a Caribbean island shared by the Dominican Republic and Haiti.[2]
Taxonomy and systematics
The narrow-billed tody and the other Hispaniolan tody, the broad-billed (T. subulatus), were originally thought to share a recent common ancestor, because the other three todies are each the only one on different islands. However, phylogenetic analysis suggests that the narrow-billed tody descended from the Cuban tody (T. multicolor) and the broad-billed tody descended from the Puerto Rican tody (T. mexicanus). The separation between the lineages occurred two to three million years ago, before either ancestor colonized Hispaniola.[2][3]
Description
All five members of genus Todus are very small, chunky, and short tailed. The narrow-billed tody weighs about 7.5 g (0.26 oz). Its upperparts are bright green, becoming almost emerald around the white eyes. A white malar stripe separates the face from the carmine red chin and throat. The sides of the neck and breast are deep lead gray; the rest of the breast and the belly are white. The flanks are geranium pink to red. The upperside of the wing is bright green and much of the underwing is sulphur yellow. Its maxilla is black and the mandible red, both with darker tips.[2]
Distribution and habitat
The narrow-billed tody is resident on Hispaniola and occurs in both countries of the island. It mostly inhabits dense wet jungle and forest between elevations of 900 and 2,400 m (3,000 and 7,900 ft). It is also found locally at lower elevations, where it overlaps the distribution of the broad-billed tody.[2]
Behavior
Feeding
The narrow-billed tody's diet is almost entirely insects; at least 49 families of them have been identified. Curiously, they do not prey on larger butterflies or caterpillars, which are part of the broad-billed tody's diet. The narrow-billed tody tends to forage high in the forest canopy, especially when part of a mixed-species foraging flock. They also feed low down among coffee bushes in plantations.[2]
Breeding
The narrow-billed tody makes display flights without vocalizations, in a manner similar to those of others of its order, but includes wing rattling that others do not. Both sexes excavate a nest burrow about 30 cm (12 in) deep in an earthen bank. The clutch size ranges from one to four glossy white eggs. Usually one clutch is laid per season, between April and July. Both sexes inclubate the eggs. Pairs separate after the young fledge and do not necessarily mate with each other the next year.[2]
Dickcissel male perched on a metal pole singing, with neck stretched and beak open.
Songs and calls
Listen to narrow-billed tody on xeno-canto
Vocalization
A characteristic narrow-billed tody vocalization is "a two note call, described as chip-chee, accented on the second syllable." They also make a short chatter.[2]
Status
The IUCN originally in 1988 assessed the narrow-billed tody as Near Threatened, but since 2004 has rated it as being of Least Concern. However, its population has not been quantified and is believed to be decreasing due to habitat loss.[1]
References
BirdLife International (2016). "Narrow-billed Tody Todus angustirostris". IUCN Red List of Threatened Species. 2016. Retrieved 28 October 2021.
Gill, F.; Donsker, D.; Rasmussen, P. (July 2021). "IOC World Bird List (v 11.2)". Retrieved July 14, 2021.
Overton, L. C. (2020). Narrow-billed Tody (Todus angustirostris), version 1.0. In Birds of the World (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.nabtod1.01 retrieved October 28, 2021
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