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
Cladus: 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: Avebrevicauda
Cladus: Pygostylia
Cladus: Ornithothoraces
Cladus: Ornithuromorpha
Cladus: Carinatae
Parvclassis: Neornithes
Cohors: Neognathae
Cladus: Neoaves
Cladus: Telluraves
Cladus: Australaves
Ordo: Passeriformes
Subordo: Passeri
Infraordo: Passerida
Superfamilia: Muscicapoidea
Familia: Mimidae
Genus: Mimus
Species: Mimus trifasciatus
Name
Mimus trifasciatus (Gould, 1837)
Synonyms
Orpheus trifasciatus (protonym)
Nesomimus trifasciatus (Gould, 1837)
References
Proceedings of the Zoological Society of London Pt5 no.50: 27.
Links
IUCN: Mimus trifasciatus (Endangered)
Vernacular names
Cymraeg: Gwatwarwr y Galapagos
Deutsch: Floreanaspottdrossel
English: Floreana Mockingbird
español: Sinsonte de Floreana
suomi: Darwininmatkija
Nederlands: Floreanaspotlijster
norsk nynorsk: Floreanaspottefugl
norsk: Floreanaspottefugl
русский: Галапагосский пересмешник
svenska: Floreanahärmtrast
українська: Пересмішник кампеонський
Tiếng Việt: Chim nhại Floreana
The Floreana mockingbird (Mimus trifasciatus) or the Charles Island mockingbird, is a species of bird in the family Mimidae. It was endemic to Floreana, one of the Galápagos Islands, but now is found only on two nearby islets, Campeón and Gardner-near-Floreana.[2][3][4] The Floreana mockingbird is also known as Darwin's mockingbird, as it was the arguable inspiration for Charles Darwin's work on the origins of species; he noticed distinct differences between them and previous species he had encountered and consequently established the existence of other variants on neighboring islands.[5]
Taxonomy and systematics
The Floreana mockingbird, Galapagos mockingbird (Mimus parvulus), Espanola mockingbird (M. macdonaldi), and San Cristobal mockingbird (M. melanotis) were previously placed in genus Nesomimus and were considered conspecific. They now form a superspecies. The Floreana mockingbird is monotypic.[2][3][4]
Description
The Floreana mockingbird is 25 to 26 cm (9.8 to 10.2 in) long. Males weigh an average of 65.7 g (2.32 oz) and females 59.8 g (2.11 oz). Adults have a pied appearance. They have a pale supercilium, a black patch in front of the eye, a darkish one below it, and white cheeks. Their crown, upperparts, and tail are grayish brown with a few faint darker streaks. Their whitish underparts have a dark patch on the side of the breast and faint spots on the breast and flanks. The folded wing shows two white bars. The juvenile is similar to the adult but more heavily streaked.[3]
Distribution and habitat
The Floreana mockingbird was formerly abundant on Floreana Island but had been extirpated from there by 1888. It now occurs only on two islets off Floreana's shore, Campeón and Gardner-near-Floreana. The islets provide a habitat of low vegetation along their shores and arid scrub with cacti and a few trees inland.[3]
Behavior
Feeding
The Floreana mockingbird mostly forages on the ground, but also in vegetation. It is primarily insectivorous but also eats cactus fruit, carrion, and probably seabird eggs.[3]
Breeding
The Floreana mockingbird's breeding season spans from October to April and two broods are usual. It is a cooperative breeder with up to five adults in each territory of about 2 ha (4.9 acres). The nest is a cup made of twigs lined with finer material; it is almost always placed in a cactus. The clutch size is two to four.[3]
Vocalization
Dickcissel male perched on a metal pole singing, with neck stretched and beak open.
Songs and calls
Listen to Floreana mockingbird on xeno-canto
The Floreana mockingbird has a "[l]oud, melodious song [and] does not mimic other species."[3]
Status
The IUCN in 1994 initially assessed the Floreana mockingbird as Endangered. In 2008 it was reclassified as Critically Endangered but then in 2017 returned to Endangered status. It was extirpated from Floreana by 1888; introduced rats, mice, cats, dogs, and goats have all been implicated as causes. The population on the two islets has fluctuated with the presence or absence of El Niño events but is believed to exceed 250 individuals and be stable.[1][3]
Repopulation efforts
Studies are under way to attempt to reintroduce the Floreana mockingbird to the main island. These include assessments of Floreana's habitat and the status of the introduced predators and competitors.[6][7]
References
BirdLife International (2018). "Floreana Mockingbird Melanotis trifasciatus". IUCN Red List of Threatened Species. 2018. Retrieved 24 July 2021.
Gill, F.; Donsker, D.; Rasmussen, P. (July 2021). "IOC World Bird List (v 11.2)". Retrieved July 14, 2021.
Cody, M. L. and C. J. Sharpe (2020). Floreana Mockingbird (Mimus trifasciatus), 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. https://doi.org/10.2173/bow.chamoc1.01 retrieved July 24, 2021
Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, A. Jaramillo, D. F. Lane, J. F. Pacheco, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. Version 23 May 2021. A classification of the bird species of South America. American Ornithological Society. https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm retrieved May 24, 2021
"Darwin's mockingbirds knock finches off perch".
Gill, Victoria (November 18, 2009). "DNA clue to save rare Darwin bird".
Gupta, Avani (2019). "Project update: Floreana mockingbird". Galapagos Conservation Trust. Retrieved July 24, 2021.
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