The weaver bird family

There are 117 living species in the weaver bird family (Ploceidae), excluding the sparrows of genus Passer, see species list here. Read more about the family here.

Latest paper
Paper: Raptors breeding on weaver nests in trees and on man-made structures

PHOWN:
Accepted: 29029
(Uploaded: 28938)

Total nests counted: 8102799

Latest weaver links:
162 Yellow-crowned Bishop male, Namibia
161 S Masked Weaver taking nectar
160 S Masked Weaver - pale bill, dark eye

Todays weaver type: (see more here)
23 May 1952, Ploceus nicolli anderseni , Usambara Weaver

Latest weaver news

Cape Weavers and Hadedas breeding at Die Oog

2019-05-20 (839)
phown record
Cape Weaver colony at Die Oog
phown record
Male Cape Weaver in colony at Die Oog
Cape Weavers have been nesting in a row of poplar trees at Die Oog, Bergvliet, Cape Town, for at least 2 decades, and probably quite a bit longer. The total number of nests is usually counted when the weaver colony is counted, although visits in early years were few and not always at the peak of breeding. For the last 6 years many visits were made through the year, each time counting the total number of nests in the poplars. The maximum number of nests per year is loosely correlated with breeding success. Some nests are also built in the willows, on the island and in the reeds, but these nests are not included as the nests are usually built by immature males and not used by females for breeding.

In many of these years a pair of Hadedas has also nested in the poplars near the weaver nests. Hadedas and Cape Weavers often nest together, and it may be that this increases the vigilance against predators. Hadedas sometimes manage to repel avian predators like crows and raptors although sometimes the predators are successful. Thus Hadedas could help reduce predation on the weaver nests.

A pair of Hadedas bred in the poplars with the weavers in 2013-2015 but not in more recent years. Interestingly the number of weaver nests has decreased in the last few years, suggesting that the presence of Hadedas previously did help the Cape Weavers. In 2015 there was also a small colony of Reed Cormorants in the poplars. Read about the nesting association of the weavers, Hadeda, and cormaorants at this site in Biodiversity Observations.

See colony record in PHOWN (PHOtos of Weaver Nests) at Die Oog colony.

Blue line - highest nest count for Cape Weaver per year
Red boxes - Hadedas bred in poplars

Scaly-feathered Finch records in KNP

2019-05-14 (838)
Scaly-feathered Finch, photo by Leigh Hoets
During Jan 2010-Mar 2011 Scaly-feathered Finch was found breeding near Pafuri in the Kruger National Park (see paper). The species was seen regularly for 15 months in the Makuleke Contract Park area of the northern KNP.

After a lapse of 8 years or so, there have been recent sightings of this species from northern KNP.

Two Scaly-feathered Finches were photographed by Leigh Hoets along the S53 about 9km south of Babalala Picnic Site in the Kruger National Park on 4 May 2019. See SA Rare Bird News Report - 6 May 2019.

On 13 May there was a record of a small group of Scaly-feathered Finches seen in the north-western corner of the Makuleke Concession, ie in the same area where the first records (2010-11) were made. See SA Rare Bird News Report - 13 May 2019.

The Scaly-feathered Finch shows increases and decreases in different parts of its range in South Africa - see Range changes.

Map of Scaly-feathered Finch records
in Limpopo and northern KNP

Big green grids - SABAP1
Small blue grids - SABAP2
Marker L - paper from 2010-11
Black dot - Babalala Picnic Site

Ringing at Sonop farm, Paardeberg, 27 April 2019

2019-04-29 (837)
Ringing site around dam at Sonop farm
Paardeberg Inselberg is surrounded by vineyards and farms, but patches of fynbos, trees, farm dams, homestead gardens provide varied habitat and good diversity of birds. Ringing has been conducted at Bowwood farm and Fynbos Estate.

On 27 April 2019 Loutjie Steenberg, Taylyn Risi and I ringed on Sonop farm and caught 43 birds of 13 species. Three birds were recaptures from a previous ringing visit by Loutjie on 29 July 2018 - a Karoo Prinia, a Cape Weaver and a Southern Masked Weaver.

The Southern Masked Weaver shown was a recapture of ring FC16512 - it was moulting its head feathers into breeding plumage (the growing feathers with sheaths were black or yellow), rather early for a weaver in a rural area.

The species of the day was Neddicky, being the first time this species has been ringed anywhere on the Paardeberg.

This ringing session brings a total of 777 birds of 39 species ringed on the Paardeberg over 2018-19.

birdpix
Neddicky

List of species ringed at Sonop farm:

birdpix
Southern Masked Weaver
Species n
Cape Turtle Dove 1
Cape Bulbul 2
Cape Robin 6
Neddicky 2
Fiscal Flycatcher 2
Fiscal Shrike 1
Cape Weaver 8
Southern Masked Weaver 7
Yellow Bishop 4
Cape Canary 1
Bully Canary 1
Cape White-eye 5
Karoo Prinia 3
Total 43

The Village Weaver in Mauritius

2019-04-28 (836)
The Village Weaver was introduced to the north part of Mauritius in about 1886. Some birds were brought from South Africa, this subspecies having a yellow crown and forehead in the breeding male (unlike the subspecies in the rest of Africa which have a black head - see species: Village Weaver species text). It increased in numbers to the point of becoming a pest. This species has also been introduced to other islands in the Indian Ocean and in the West Indies.

The Village Weaver is well established in Mauritius. Pieter Cronje surveyed 282 colonies along some of the main roads (see map) over 2 visits, in April 2014 and February 2015. Four colonies were in large bamboo clumps and the rest in trees. Colony size varied from 1 to 300, mean 17.1, n=266 colonies with nest counts). Many colonies are in causarina and palm trees

Village Weaver colonies in Mauritius
phown
Village Weaver colony in palm on Mauritius
phown
Village Weaver colony in bamboo on Mauritius

Paper: Raptors breeding on weaver nests in trees and on man-made structures

2019-03-29 (835)
phown
White-backed Vulture nest on top of Sociable
Weaver nest in tree; Photo: Neil Thomson
Raptors are known to breed on top of weavers nests but are they willing to follow the weavers onto man-made structures?

Paper: Oschadleus HD. 2019. Raptors breeding on weaver nests in trees and on man-made structures. Ostrich 90(1):85-88.

Abstract. Several raptor species nest on top of large weaver nests. These weaver nests are usually sited in trees, but 11.7% of Red-billed Buffalo-Weaver Bubalornis niger and 25.7% of Sociable Weaver Philetairus socius nests occur on man-made structures. In an extensive literature search, a total of 16 raptor species were recorded as nesting on top of weaver nests. At least 10 raptor species used weaver nests built in trees. Seven raptor species used weaver nests on man-made sites and four raptor species only used weaver nests built on man-made sites. No owls have been recorded as using weaver nests on man-made sites. There are historical records of raptors nesting on top of weaver nests in trees, while nesting on top of weaver nests sited on man-made structures appears to be a more recent adaptation. Costs and benefits of nesting on man-made sites are briefly listed. Nesting on man-made sites may increase (by both weavers and raptors) and raptor researchers are encouraged to document cases of raptors nesting on weaver nests where these are placed in trees or artificial sites, so that there is a record of changes in frequency of nest site usage by raptors.

phown
Verreaux's Eagle nest on top of Sociable Weaver nest
on man-made site; Photo: Japie Claassen

Raptor species listed in the paper:

Secretarybird Sagittarius serpentarius
White-backed Vulture Gyps africanus
Lappet-faced Vulture Torgos tracheliotos
Brown Snake Eagle Circaetus cinereus
Bateleur Terathopius ecaudatus
Martial Eagle Polemaetus bellicosus
Tawny Eagle Aquila rapax
Verreauxs' Eagle Aquila verreauxii
Pale Chanting Goshawk Melierax canorus
Jackal Buzzard Buteo rufofuscus
Barn Owl Tyto alba
White-faced Owl Otus leucotis
Spotted Eagle Owl Bubo africanus
Giant Eagle Owl Bubo lacteus
Rock Kestrel Falco tinnunculus
Greater Kestrel Falco rupicoloides

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Send news items Dieter Oschadleus - see left