The above is based on Weaver Wednesday 2, a weekly series about the discovery of each weaver species.
This species text first appeared as Weaver Wednesday [219] – Discovery [102]: Strange Weaver on 2016-08-24
1. Basic biology
Strange Weaver, figure from Shelley 1905bStrange Weaver, figure from wikipedia
Identification. The Strange Weaver adult (photo above) has the head, neck and bib on the breast black, with a chestnut band below the bib. The female is similar but the black ends on the throat, and the breast is chestnut. Young birds are green above, yellow below, and with a golden brown wash on the chin and throat.
Distribution. The Strange Weaver occurs along the Albertine Rift in DR Congo, Uganda, Rwanda and Burundi (see map above, based on Birds of Africa).
No subspecies of the Strange Weaver are recognised.
Habitat. The Strange Weaver is a common understorey skulker in montane forest at 1500-2700 m. It generally forages in pairs low down in clearings, secondary growth and dense understorey usually below 5 m. It joins mixed-species flocks, associating particularly with Dark-backed Weavers.
Food. The Strange Weaver feeds on insects and invertebrates, and also eats berries and some seeds.
Breeding. The Strange Weaver is solitary and monogamous, probably having a permanent pair bond.
Strange Weaver nest, figure from PHOWNStrange Weaver egg, figure from Ogilvie-Grant 1910b
The nest (photo above) is retort-shaped, with a short entrance tube pointing outwards, rather than straight down. Both sexes build the nest, primarily using thin tendrils of creepers, with some fine strips of grass. The coils of the short tendrils interlock. The nest is suspended from the tip of a branch 3-10 m above ground or over water. Branches near the nest are stripped of leaves and twigs. A pair may have 2 nests close together.The clutch size is 2. The eggs are creamy white with some grey shading, irregularly speckled with reddish-brown (figure above).
Old nests may be used for breeding by the White-collared Oliveback Nesocharis ansorgei.
The above is based on Weaver Wednesday, a weekly series about weaver species.
This species text first appeared as Weaver Wednesday [29]: Strange Weaver on 2013-01-02
2. Breeding facts
Pair bond
Monogamous, probably with long-term pair-bond
Breeding season
Jan-May, possibly throughout year, in DRCongo, and in Jan-Feb, Jun and Oct in Uganda
Nest site
suspended 3-10 m above ground from tip of branch
Nest building
built by both sexes
Colony size
Solitary nester, although one pair may have two nests close together
Clutch size
2 eggs
Egg colour
creamy white with some grey shading, irregularly spotted with reddish-brown
Egg size
average size of eight eggs 22.3 x 15 mm
Incubation
no information
Chicks and nestling period
no information
Breeding information based on Handbook of the Birds of the World, Vol. 15.