Weaver species

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Preuss's Weaver Ploceus preussi

IUCN: Least concern     Discovery: 092

Categories: nuthatch, fruit,
News items about species

Discovery

Preuss's Weaver
Preuss's Weaver juvenile,
figure from Sjostedt (1895)
Preuss's Weaver
Preuss's Weaver heads (circled), cf.
1. Brown-capped Weaver
3. Yellow-capped Weaver
Middle row - chins, rest crowns
figure from Ogilvie-Grant (1917)
Preuss's Weaver map
Preuss's Weaver
distribution, type locality circled

Introduction

The Preuss's Weaver was formally described by Anton Reichenow, a German ornithologist and herpetologist.

The Preuss's Weaver was collected by Paul Preuss, a German botanist and collector (born in Prussia).

Preuss lived in Sierra Leone from 1886-1888, and then was sent to help in the Zintgraff military expedition to Kumba, western Cameroon in 1889-1892, as most of Cameroon was a German colony. The troop commander was killed in action, so Preuss took charge and led the troops back to the coast.

In Victoria (now called Limbe), on the southern slopes of Mount Cameroon, Preuss had time to collect plants and some birds, including Preuss's Weaver. His specimens were sent to Berlin where Reichenow described the new birds.

Preuss founded the botanical garden at Victoria in 1901, and he served as first director until 1902.

Preuss collected two male specimens but these were not illustrated. The first illustration of Preuss's Weaver was of a juvenile, published by Sjostedt (1895). The next illustration was of the heads of this species in Ogilvie-Grant (1917), who compared the species with other similar species.

Scientific citation

Symplectes preussi Reichenow 1892c, Journ. f. Orn., 40, p.442, Victoria, Cameroon.

Meaning of names

preussi, Named after Paul Preuss (1861-1926), a German botanist and collector in West Africa, 1886-1888, 1892-1898 and New Guinea, 1903.

First English name

Golden Black-winged Weaver (Shelley 1905b).

Alternate names

Congo Golden-backed Weaver, Golden Black-winged Weaver, Golden-backed Weaver, Golden-capped Weaver, Golden-mantle Weaver.

Collector

Paul Preuss.

Date collected

12 May 1892.

Locality collected

Limbe (previously Victoria), Cameroon.

Type specimens

The type is in the Berlin Museum (ZMB_29953).

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 [209] - Discovery [92]: Preuss's Weaver on 2016-06-15

1. Basic biology

Preuss's Weaver
Preuss's Weaver male & female,
figure from Bannerman 1949
Preuss's Weaver
Preuss's Weaver juvenile,
figure from Sjostedt 1895
Identification. The Preuss's Weaver is a small 'nuthatch weaver'.

The male has a black mask with an orange crown and forehead. The male differs from the very similar Brown-capped Weaver by its chestnut forehead merging gradually into yellow on the nape and it has a chestnut patch (instead of yellow) on the lower throat. The Preuss's Weaver male differs from the Yellow-capped Weaver in having a yellow (not black) rump.

The female Preuss's Weaver has a black mask and band across the forehead, with the rest of the crown yellow, while the Brown-capped Weaver and Yellow-capped Weaver females both have black crowns.

The juvenile Preuss's Weaver has a yellow-olive head and pale bill.

Distribution. The Preuss's Weaver occurs in West and central Africa, from Guinea to DRCongo (see map below, based on Birds of Africa). No races are currently recognised. Its distribution is very patchy, since its forest habitat is fragmented and reduced throughout its range. Preuss's Weaver map

Habitat. The Preuss's Weaver inhabits the canopy of primary and secondary forests. It occurs alongside the Red-headed Malimbe in Liberia, foraging in a similar manner, and with the Yellow-capped Weaver in Cameroon. Adults are usually found in pairs, or in groups of 1-4 birds which may be family parties, and in mixed-species flocks.

Food. The Preuss's Weaver feeds mainly on insects, including eggs and larvae, grasshoppers and caterpillars. It also feeds on spiders and other bark-living arthropods. Hard seeds, perhaps from a berry, and a large earthworm have also recorded in its diet.

The Preuss's Weaver runs along branches covered in epiphytes, gleaning on alternate sides, and hangs upside down on occasion. It also forages on boles of forest trees, and on dead trees.

Breeding. The Preuss's Weaver is monogamous and a solitary breeder. Only one nest has been described, as a ball made almost entirely of greyish green Usnea. The nest was bound together with strips of palm leaves. The nest entrance is below, without a tunnel. The nest was fastened securely to small branches, 11 m high in a small tree.

The eggs have not been described. Both parents feed the nestlings.

The above is based on Weaver Wednesday, a weekly series about weaver species.
This species text first appeared as Weaver Wednesday [93]: Preuss's Weaver on 2014-03-26

2. Breeding facts

Pair bond
Monogamous
Breeding season
Specimens with enlarged gonads and sightings ofdependent juveniles indicate breeding in Nov in Liberia, Aug in Cameroon, and Mar, Jun, Aug and Dec in DRCongo
Nest site
one nest fastened securely to small branches 11 m above ground in canopy of small tree
Nest building
no information
Colony size
Solitary nester
Clutch size
no information
Egg colour
no information
Egg size
no information
Incubation
no information
Chicks and nestling period
Nestlings fed by both sexes

Breeding information based on Handbook of the Birds of the World, Vol. 15.

3. Photos of Weaver Nests

No records yet - be the first to submit a PHOWN record!
See PHOWN summary page for this species here.

PHOWN (Photos of Weaver Nests) provides valuable info on breeding distribution and colony sizes of weavers.
You can contribute by registering and submitting photos at Virtual Museum webpage.

4. Breeding distribution

Google map showing distribution (For species with small ranges you need to zoom in at the correct area to see the range):
yellow blob - range of weaver species; read more about this here.
- PHOWN records with photos
- PHOWN records with no photos (Nest Record Cards, other records)
- Birdpix records
- comments on out of range records, or interesting records
- type locality
CLICK on the marker on the map to see individual record details.

5. Range changes

Still coming

The above is based on Weaver Wednesday 3, a weekly series about range changes in South African weaver species.
This species text first appeared as Still coming