Dryoscopus


Dryoscopus is a genus of bird in the Malaconotidae or bushshrike family. Its members are known as puffbacks. The six species, all of fairly uniform appearance and habits, are native to various parts of sub-Saharan Africa. The name Dryoscopus is a compound Greek 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. 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.
They move about in pairs in the upper strata of trees 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, while the remaining three 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

DNA-DNA hybridization studies suggest that genus Tchagra is their closest relative, though biological traits also link them to Laniarius, shrike-flycatchers and other genera.

Species

The genus contains the following six species:
ImageCommon nameScientific nameHabitatDistribution
Pink-footed puffbackDryoscopus angolensisisolated montane and submontane forestsKenya, Uganda and the eastern Congo 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 clearingsNigeria and Central Africa.