''Dryoscopus'' is a genus of
bird
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweig ...
in the
Malaconotidae or bushshrike family. Its members are known as puffbacks. The six species, all of fairly uniform appearance and habits, are
native
Native may refer to:
People
* Jus soli, citizenship by right of birth
* Indigenous peoples, peoples with a set of specific rights based on their historical ties to a particular territory
** Native Americans (disambiguation)
In arts and enterta ...
to various parts of
sub-Saharan Africa.
The name ''Dryoscopus'' is a compound
Greek
Greek may refer to:
Greece
Anything of, from, or related to Greece, a country in Southern Europe:
*Greeks, an ethnic group.
*Greek language, a branch of the Indo-European language family.
**Proto-Greek language, the assumed last common ancestor ...
word: ''drus'' from the Greek word for "tree" and ''skopos'', meaning "watcher or lookout".
Structure and habits
Puffbacks are small, active bushshrikes that show a superficial resemblance to
boubous. They however display only rudimentary duetting, have red or reddish irides, are smaller and compact with bouncy flight, and display
sexual dimorphism
Sexual dimorphism is the condition where the sexes of the same animal and/or plant species exhibit different morphological characteristics, particularly characteristics not directly involved in reproduction. The condition occurs in most an ...
.
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.
[ Comparable habits are found in some related genera (cf. '' Bocagia'', '']Bias
Bias is a disproportionate weight ''in favor of'' or ''against'' an idea or thing, usually in a way that is closed-minded, prejudicial, or unfair. Biases can be innate or learned. People may develop biases for or against an individual, a group ...
'', '' Lanioturdus'', ''Batis
Batis may refer to:
* ''Batis'' (plant), a genus of flowering, salt-tolerant plants
* ''Batis'' (bird), a genus of birds in the wattle-eye family
* Batis (commander), an ancient military commander
* Batis (lens), a series of full-frame Zeiss l ...
'' and '' Dyaphorophyia'').
They move about in pairs in the upper strata of trees (Pringle's excepting) and may join mixed-species flocks. They command a varied repertoire of explosive and fricative whistles, percussive clicking sounds, and harsh rasping, churring or tearing sounds. Three species have a rasping alarm call
In animal communication, an alarm signal is an antipredator adaptation in the form of signals emitted by social animals in response to danger. Many primates and birds have elaborate alarm calls for warning conspecifics of approaching predato ...
(''cubla'', ''senegalensis'' and ''pringlii''), while the remaining three (''gambensis'', ''angolensis'' and ''sabini'') 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
A nuptial gift is a nutritional gift given by one partner in some animals' sexual reproduction practices.
Formally, a nuptial gift is a material presentation to a recipient by a donor during or in relation to sexual intercourse that is not simpl ...
is present, and studied species are monogamous and single-brooded.
Relationships
DNA-DNA hybridization studies suggest that genus ''Tchagra
The tchagras are passerine birds in the bushshrike family, which are closely related to the true shrikes in the family Laniidae, and were once included in that group.
Description
These are long-tailed birds, typically with a grey or grey-brown ...
'' is their closest relative, though biological traits also link them to ''Laniarius
''Laniarius'' is a genus of brightly coloured, carnivorous passerine birds commonly known as boubous or gonoleks. Not to be confused with the similar-sounding genus ''Lanius'', they were formerly classed with the true shrikes in the family Lani ...
'', shrike-flycatchers (i.e. ''Bias
Bias is a disproportionate weight ''in favor of'' or ''against'' an idea or thing, usually in a way that is closed-minded, prejudicial, or unfair. Biases can be innate or learned. People may develop biases for or against an individual, a group ...
'' and '' Megabyas'') and other genera.
Species
The genus contains the following six species:
Gallery
File:Black-backed Puffback (Dryoscopus cubla) (6017632158).jpg, Head of male, ''D. cubla'', showing red iris
File:Black-backed Pufback (Dryoscopus cubla) (31638418377), crop.jpg, Displaying male, ''D. cubla'', with raised back and rump feathers
File:Black-backed Puffback (Dryoscopus cubla) male (32397227986).jpg, Tit-like foraging habit of male ''D. cubla''
File:The Journal of the South African Ornithologists' Union (1905) (14749479424).jpg, Nest of ''D. cubla'' wedged in branches of a sapling
References
{{Taxonbar, from=Q2473810
Bird genera
Taxonomy articles created by Polbot