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Dryoscopus

From Wikipedia, the free encyclopedia
Genus of birds

Dryoscopus
DisplayingD. gambensis male
Scientific classificationEdit this classification
Kingdom:Animalia
Phylum:Chordata
Class:Aves
Order:Passeriformes
Family:Malaconotidae
Genus:Dryoscopus
F. Boie, 1826
Type species
Lanius cubla[1]
Latham, 1801

Dryoscopus is a genus ofbird in theMalaconotidae or bushshrike family. Its members are known aspuffbacks. The six species, all of fairly uniform appearance and habits, arenative to various parts ofsub-Saharan Africa.[2] The nameDryoscopus is a compoundGreek word:drus from the Greek word for "tree" andskopos, meaning "watcher or lookout".[3]

Structure and habits

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Puffbacks are small, active bushshrikes that show a superficial resemblance toboubous. They however display only rudimentary duetting, have red or reddish irides, are smaller and compact with bouncy flight, and displaysexual dimorphism.[4] Characteristically, the long, loose and pale feathers of the male bird's back and rump are puffed out conspicuously during display. At the same time he may fly about, calling loudly.[5] Comparable habits are found in some related genera (cf.Bocagia,Bias,Lanioturdus,Batis andDyaphorophyia).[6]

Laniarius (top left) vs.Dryoscopus (below and right)

They move about in pairs in the upper strata of trees (Pringle's excepting) and may join mixed-species flocks.[5] They command a varied repertoire of explosive and fricative whistles, percussive clicking sounds, and harsh rasping, churring or tearing sounds.[6] Three species have a raspingalarm call (cubla,senegalensis andpringlii), while the remaining three (gambensis,angolensis andsabini) have a stuttering alarm call. Wing fripping and bill snapping complement vocal communication. The nest is a neat compact cup in the general fashion of bushshrikes, but similar to those of shrike-flycatchers.Courtship feeding is present, and studied species are monogamous and single-brooded.

Relationships

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DNA-DNA hybridization studies suggest that genusTchagra is their closest relative, though biological traits also link them toLaniarius, shrike-flycatchers (i.e.Bias andMegabyas) and other genera.[6]

Species

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The genus contains the following six species:[7]

ImageCommon nameScientific nameHabitatDistribution
Pink-footed puffbackDryoscopus angolensisisolated montane and submontane forestsKenya, Uganda and the easternCongo Basin
Black-backed puffbackDryoscopus cublatropical to austral woodlands and afromontane forestsub-Saharan Africa, from southern Somalia to coastal South Africa.
Northern puffbackDryoscopus gambensisequatorial to sub-Saharan wooded savannahnorthern sub-Saharan Africa
Pringle's puffbackDryoscopus pringliidry, equatorial acacia scrub and thicketEthiopia, Kenya, Somalia, and northern Tanzania
Sabine's puffbackDryoscopus sabinitropical forestCongo basin and West African coast
Red-eyed puffbackDryoscopus senegalensismid-canopy at tropical forest edge and clearings[4]Nigeria and Central Africa.

Gallery

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  • Head of male, D. cubla, showing red iris
    Head of male,D. cubla, showing red iris
  • Displaying male, D. cubla, with raised back and rump feathers
    Displaying male,D. cubla, with raised back and rump feathers
  • Tit-like foraging habit of male D. cubla
    Tit-like foraging habit of maleD. cubla
  • Nest of D. cubla wedged in branches of a sapling
    Nest ofD. cubla wedged in branches of a sapling

References

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  1. ^"Malacontidae".aviansystematics.org. The Trust for Avian Systematics. Retrieved2023-07-16.
  2. ^Monroe, Jr., Burt L.; Sibley, Charles G. (1997).A World Checklist of Birds. New Haven, CT, USA: Yale University Press. pp. 213–4.ISBN 978-0-300-07083-5.
  3. ^Jobling, James A. (2010).The Helm Dictionary of Scientific Names. London, UK: Christopher Helm. p. 141.ISBN 978-1-4081-2501-4.
  4. ^abSinclair, Ian; Ryan, Peter (2010).Birds of Africa south of the Sahara (2nd ed.). Cape Town: Struik Nature. pp. 580–581.ISBN 9781770076235.
  5. ^abTerry Stevenson; John Fanshawe (2004).Birds of East Africa: Kenya, Tanzania, Uganda, Rwanda, Burundi. Helm Field Guides. p. 472.ISBN 0713673478.
  6. ^abcHarris, Tony; Franklin, Kim (2000).Shrikes & bush-shrikes: including wood-shrikes, helmet-shrikes, flycatcher-shrikes, philentomas, batises and wattle-eyes. London: C. Helm. pp. 35–46.ISBN 9780713638615.
  7. ^"ITIS Report:Dryoscopus".Integrated Taxonomic Information System. Retrieved20 October 2014.
Genera ofcorvides and their extinct allies
Campephagidae
Cinclosomatidae
Eulacestomatidae
Falcunculidae
Mohouidae
Neosittidae
Oreoicidae
Oriolidae
Pachycephalidae
Paramythiidae
Psophodidae
Malaconotoidea
    • See below ↓
Corvoidea
    • See below ↓
TurnagraCampochaera sloetii
Aegithinidae
Artamidae
Artaminae
Craticinae
Peltopsinae
Machaerirhynchidae
Malaconotidae
Pityriasidae
Platysteiridae
Rhagologidae
Vangidae
Malaconotus monteiriMachaerirhynchus nigripectus
Corcoracidae
Corvidae
Dicruridae
Ifritidae
Laniidae
Melampittidae
Monarchidae
Monarchinae
Terpsiphoninae
Paradisaeidae
Platylophidae
Rhipiduridae
Lamproliinae
Rhipidurinae
Vireonidae
Paradisaea minor

Seleucidis melanoleucaNucifraga caryocatactes

Corvus corax
Dryoscopus
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