Nomdeploom (talk | contribs) m |
|||
| Line 7: | Line 7: | ||
====Similar species==== | ====Similar species==== | ||
| − | The [[Black-crowned Tchagra]] is larger and has a black crown; the [[Southern Tchagra]] is also larger, lacks the thin black stripe above the eyebrow, and has a darker brown crown; the female [[ | + | The [[Black-crowned Tchagra]] is larger and has a black crown; the [[Southern Tchagra]] is also larger, lacks the thin black stripe above the eyebrow, and has a darker brown crown; the female [[Marsh Tchagra]] has a black crown and a shorter white eyebrow. |
==Distribution== | ==Distribution== | ||
Revision as of 17:22, 18 June 2009
- Tchagra australis
Identification
Length 17.5 cm, mass 29-46 g.
Similar species
The Black-crowned Tchagra is larger and has a black crown; the Southern Tchagra is also larger, lacks the thin black stripe above the eyebrow, and has a darker brown crown; the female Marsh Tchagra has a black crown and a shorter white eyebrow.
Distribution
Africa south of the Sahara; widespread between about 8°N and about 30°S, although absent from the central Congo Basin and arid zones in the north-east and south-west.
Taxonomy
Nine subspecies have been recognised, based on variation in the colour of the underparts and in size.
Habitat
Thickets within woodlands; forest edges; scrubby vegetation at higher altitudes; also fallow fields and gardens.
Behaviour
Breeding: The nest is a shallow, thin-walled cup of stems, roots and fibres, bound with spider web; lined with fine rootlets; usually low down in mixed bush and tall grass, or up to 3 m above ground in fork of bush or tree. Clutch: 2-4 eggs laid September to March in southern Africa. Eggs: White or pinkish white, spotted and blotched with brown and grey concentrated at thick end. Incubation: About 14-16 days by both sexes, mostly by female. Nestling: 14-16 days; fed by both parents; young remain with parents for at least 5 months after leaving nest.
Vocalisation
In flight display rises with loud bursts of quivering wings, just above vegetation, prrr prrr prrr prrr, followed by gliding descent with spread tail and about 15 melodious double whistles dropping in tone but rising in volume, pa-reeu pa-reeu pa-reeu, etc.; sharp chirrp, chirrp alarm and anxiety calls.
