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Ramphodon naevius 1

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
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
Subordo: 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: Ornithuromorpha
Cladus: Carinatae
Parvclassis: Neornithes
Cohors: Neognathae
Cladus: Neoaves
Superordo: Caprimulgimorphae
Ordo: Apodiformes

Familia: Trochilidae
Subfamilia: Phaethornithinae
Genus: Ramphodon
Species: Ramphodon naevius

Ramphodon naevius (Dumont, 1818)

Type locality: Mount Corcovado, Rio de Janeiro, Brazil.


Trochilus nævius (protonym)


Dumont, C. 1818. Oiseaux (Contributions) In: Cuvier, F. Dictionnaire des Sciences Naturelles, dans lequel on traite méthodiquement des différens êtres de la nature, considérés soit en eux-mêmes, d’après l’état actuel de nos connoissances, soit relativement à l’utilité qu’en peuvent retirer la médecine, l’agriculture, le commerce et les arts. 10: 596 pp. DOI: 10.5962/bhl.title.42219 BHL Reference page. p. 55 BHL


IUCN: Ramphodon naevius (Least Concern)

Vernacular names
català: Colibrí ermità becserrat
Cymraeg: Meudwy danheddog
dansk: Savnæbskolibri
Deutsch: Sägeschnabel-Eremit
English: Saw-billed Hermit
español: ermitaño picosierra
فارسی: گوشه‌گیر نوک‌اره‌ای
suomi: Sahanokkakolibri
français: Colibri tacheté, Ermite tacheté
magyar: Fűrészescsőrű remetekolibri
日本語: ノコハシハチドリ
Nederlands: Zaagsnavelheremietkolibrie
polski: Piłodziobek
português: beija-flor-rajado
русский: Пилоклювый рамфодон
svenska: sågnäbbskolibri
中文: 锯嘴蜂鸟

The saw-billed hermit (Ramphodon naevius) is a hummingbird in the family Trochilidae. It is endemic to Brazil.[3]
Taxonomy and systematics

The saw-billed hermit is placed in the hermit subfamily Phaethornithinae, but among these birds, it is the species most similar to the typical hummingbirds, Trochilinae.[4] It is the only member of its genus and has no subspecies.[3]
Saw-billed Hermit Ramphodon naevius.jpg

The saw-billed hermit is 14 to 16 cm (5.5 to 6.3 in) long and weighs 5.3 to 9 g (0.19 to 0.32 oz). It is one of the three heaviest hermits and the male is heavier than the female. Both sexes have saw-like serrations on the mandible and the male's bill has a hooked tip as well. (The unrelated tooth-billed hummingbird (Androdon aequatorialis) is the only other hummingbird that has a serrated bill.) Both sexes have scaly brown upperparts and dark and pale striped underparts. They have a reddish ochre throat, a dark patch through the eye, and a white supercilium. The upper side of the tail is purplish black while the underside has progressively more buff at the ends to the outer pair of feathers.[4]
Distribution and habitat

The saw-billed hermit is found in a narrow band of southeastern Brazil from the states of Minas Gerais and Espírito Santo south to eastern Santa Catarina and northernmost Rio Grande do Sul. It inhabits the understory of the humid coastal Atlantic Forest up to an elevation of 500 m (1,600 ft).[4]

The saw-billed hermit is presumed to be sedentary, but there is speculation that it makes some short-range movements.[4]

The saw-billed hermit feeds on the nectar of a wide range of native and introduced flowering plants; most share the characteristic of tubular blossoms. It typically feeds within about 6 m (20 ft) of the ground but has been noted as high as 15 m (49 ft). Like other hermit hummingbirds it is a "trap-line" feeder, visiting a circuit of flowering plants. However, unlike many other trap-liners it defends its route by aggressive behavior towards conspecific and other hummingbirds. In addition to nectar, it feeds on small arthropods gleaned from vegetation.[4]

The saw-billed hermit's breeding season has not been fully defined but appears to include July to September. It builds its cone-shaped cup nest from plant material and cobwebs under the tip of a long drooping leaf. Its clutch is two eggs.[4]

Dickcissel male perched on a metal pole singing, with neck stretched and beak open.

Songs and calls
Listen to saw-billed hermit on xeno-canto

The saw-billed hermit's song is a "very high, chattering twitter". Calls include "a sustained, rapid series of very high 'bic' notes" and "a descending series...of 'seee' notes."[5] The calls are apparently used while defending the trap-line.[4]

The IUCN has assessed the saw-billed hermit as Least Concern. "[It] is suspected to be declining moderately rapidly owing to habitat loss."[1]

BirdLife International (2021). "Saw-billed Hermit Ramphodon naevius". IUCN Red List of Threatened Species. 2021. Retrieved 13 November 2021.
"Appendices | CITES". Retrieved 2022-01-14.
Gill, F.; Donsker, D.; Rasmussen, P. (July 2021). "IOC World Bird List (v 11.2)". Retrieved July 14, 2021.
Hinkelmann, C. and G. M. Kirwan (2020). Saw-billed Hermit (Ramphodon naevius), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. retrieved November 13, 2021
van Perlo, Ber (2009). A Field Guide to the Birds of Brazil. New York: Oxford University Press. p. 160. ISBN 978-0-19-530155-7.

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