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 Weaver Wednesday
Red-headed Quelea

PHOWN:
Accepted: 26585
(Uploaded: 26585)

Total nests counted: 8081867

Latest weaver links:
129 Leucistic Village Weaver
128 Cape Weaver feeding at fresh horse dung
127 Red-collared Widowbird - male display flight

Todays weaver type: (see more here)
25 Apr 1918, Amblyospiza albifrons montana , Thick-billed Weaver

Latest weaver news

Weaver Wednesday 3 [254] - Range changes [17]: Red-headed Quelea

2017-04-26 (778)

gravit8 Weaver Wednesday 3: range changes in S Africa (species text)

Red-headed Quelea Quelea erythrops

map
Red-headed Quelea, Range-change map between SABAP1 (1987-1991) and SABAP2 (2007-current).
Red, orange and yellow = cells with very large, large, and small relative decreases
Blue, dark green and light green = cells with very large, large and small relative increases.
Cells = quarter-degree grid cells; Only cells with at least 4 checklists in both SABAP1&2 shown. All cells had this species recorded in SABAP1 or in SABAP2 or in both (more about interpretation at Biodiversity Observations 7.62: 1-13).

Red-headed Quelea
Red-headed Quelea,
figure from Birdpix

Range changes in SA

Range change summary
More 4 lists 30 lists
increases n % n %
Decrease 11 18 10 18
Tiny change 2 4 2 4
Increase 49 79 43 78
Total 62 100 55 100
In South Africa the Red-headed Quelea has many more grid cells with increases in reporting rate than cells showing decreases, between SABAP1 (1987-1991) and SABAP2 (2007-).

The points below match the points on the map above.

Areas with very large increases include:
1. Along the eastern coast of South Africa.

Areas with very large decreases include:
2. The interior edge of its range in KwaZulu-Natal.

The Red-headed Quelea occurs at a low density in southern Africa. During SABAP1 the Red-headed Quelea was not recorded in the Eastern Cape, but there had been many records prior to SABAP1.

Range changes elsewhere

Botswana: new arrival (Tyler 2008a).
Chad: seen near Mongo, unusually far north (Demey 2015b).

Weaver Wednesday 3 [253] - Range changes [16]: Red-billed Quelea

2017-04-19 (777)

gravit8 Weaver Wednesday 3: range changes in S Africa (species text)

Red-billed Quelea Quelea quelea

map
Red-billed Quelea, Range-change map between SABAP1 (1987-1991) and SABAP2 (2007-current).
Red, orange and yellow = cells with very large, large, and small relative decreases
Blue, dark green and light green = cells with very large, large and small relative increases.
Cells = quarter-degree grid cells; Only cells with at least 4 checklists in both SABAP1&2 shown. All cells had this species recorded in SABAP1 or in SABAP2 or in both (more about interpretation at Biodiversity Observations 7.62: 1-13).

Red-billed Quelea
Red-billed Quelea,
figure from Birdpix

Range changes in SA

Range change summary
More 4 lists 30 lists
increases n % n %
Decrease 200 15 51 9
Tiny change 221 16 102 20
Increase 929 69 372 71
Total 1350 100 525 100
In South Africa the Red-billed Quelea has many more grid cells with increases in reporting rate than cells showing decreases, between SABAP1 (1987-1991) and SABAP2 (2007-).

The points below match the points on the map above.

Areas with very large increases include:
1. Free State to southern KwaZulu-Natal.
2. Western part of the Eastern Cape.
3. Most of the Western Cape - this is a range expansion in recent decades.

Mixed results (increases and decreases):
4. Limpopo Province
5. North-West Province and the Northern Cape - mixed results due to poor coverage - more atlasing needed!

6. Lesotho - occurs at low density; SABAP2 coverage too low for meaningful results.

Range changes elsewhere

Exotic populations established in foreign countries, eg Spain, Oman, Reunion: Appendix of Dyer EE, Redding DW, Blackburn TM. 2017. The global avian invasions atlas, a database of alien bird distributions worldwide. Nature Scientific Data 4 no: 170041.

Weaver Wednesday 3 [252] - Range changes [15]: Thick-billed Weaver

2017-04-12 (776)

gravit8 Weaver Wednesday 3: range changes in S Africa (species text)

Thick-billed Weaver Amblyospiza albifrons

map
Thick-billed Weaver, Range-change map between SABAP1 (1987-1991) and SABAP2 (2007-current).
Red, orange and yellow = cells with very large, large, and small relative decreases
Blue, dark green and light green = cells with very large, large and small relative increases.
Cells = quarter-degree grid cells; Only cells with at least 4 checklists in both SABAP1&2 shown. All cells had this species recorded in SABAP1 or in SABAP2 or in both (more about interpretation at Biodiversity Observations 7.62: 1-13).

Thick-billed Weaver
Thick-billed Weaver,
figure from Birdpix

Range changes in SA

Range change summary
More 4 lists 30 lists
increases n % n %
Decrease 91 22 32 11
Tiny change 71 16 50 18
Increase 270 62 194 71
Total 432 100 276 100
In South Africa the Thick-billed Weaver has many more grid cells with increases in reporting rate than cells showing decreases, between SABAP1 (1987-1991) and SABAP2 (2007-).

The points below match the points on the map above.

Areas with very large increases include:
1. Gauteng and surrounding areas - first reported here in 1961, increased over many decades in urban Gauteng, and in recent years expanding further outwards.
2. Expanding westwards in interior KwaZulu-Natal.
3. Western parts of the Eastern Cape.

Areas with very large decreases:
4. Some decreases along the Mozambique border - this weaver occurs at a lower density here.

Range changes elsewhere

Zimbabwe: increase in Harare, expanding from east (Baker 2011b).

Weaver Wednesday 3 [251] - Range changes [14]: Southern Masked Weaver

2017-04-05 (775)

gravit8 Weaver Wednesday 3: range changes in S Africa (species text)

Southern Masked Weaver Ploceus velatus

map
Southern Masked Weaver, Range-change map between SABAP1 (1987-1991) and SABAP2 (2007-current).
Red, orange and yellow = cells with very large, large, and small relative decreases
Blue, dark green and light green = cells with very large, large and small relative increases.
Cells = quarter-degree grid cells; Only cells with at least 4 checklists in both SABAP1&2 shown. All cells had this species recorded in SABAP1 or in SABAP2 or in both (more about interpretation at Biodiversity Observations 7.62: 1-13).

Southern Masked Weaver
Southern Masked Weaver,
figure from Birdpix

Range changes in SA

Range change summary
More 4 lists 30 lists
increases n % n %
Decrease 262 19 71 11
Tiny change 503 37 203 34
Increase 598 44 330 55
Total 1363 100 604 100
In South Africa the Southern Masked Weaver has many more grid cells with increases in reporting rate than cells showing decreases, between SABAP1 (1987-1991) and SABAP2 (2007-).

The points below match the points on the map above.

Areas with very large increases include:
1. Western Limpopo Province.
2. Most of Swaziland and southern Mpumalanga.
3. Much of the Western Cape - still increasing after arriving in the province less than a century ago.

Mixed results (increases and decreases):
4. Interior of the Northern Cape - mixed results due to poor coverage - more atlasing needed!

Areas with very large decreases:
5. Southern KwaZulu-Natal - this weaver occurs at a low density here.

Range changes elsewhere

Zimbabwe: increase in Harare due to vegetation and gardens (Brooke 1963a).

Weaver Wednesday 3 [250] - Range changes [13]: Southern Brown-throated Weaver

2017-03-29 (774)

gravit8 Weaver Wednesday 3: range changes in S Africa (species text)

Southern Brown-throated Weaver Ploceus xanthopterus

map
Southern Brown-throated Weaver, Range-change map between SABAP1 (1987-1991) and SABAP2 (2007-current).
Red, orange and yellow = cells with very large, large, and small relative decreases
Blue, dark green and light green = cells with very large, large and small relative increases.
Cells = quarter-degree grid cells; Only cells with at least 4 checklists in both SABAP1&2 shown. All cells had this species recorded in SABAP1 or in SABAP2 or in both (more about interpretation at Biodiversity Observations 7.62: 1-13).

Southern Brown-throated Weaver
Southern Brown-throated Weaver,
figure from Birdpix

Range changes in SA

Range change summary
More 4 lists 30 lists
decreases n % n %
Decrease 20 50 15 45
Tiny change 5 13 4 12
Increase 15 38 14 42
Total 40 100 33 100
In South Africa the Southern Brown-throated Weaver has many more grid cells with decreases in reporting rate than cells showing increases, between SABAP1 (1987-1991) and SABAP2 (2007-).

The points below match the points on the map above.

Areas with very large increases include:
1. SE Mpumalanga, especially around Komatipoort - this species was not recorded in Mpumalanga prior to 2002.

Areas with very large decreases:
2. Northern coastal Zululand in KwaZulu-Natal.
3. Coastal KwaZulu-Natal has many grids with decreases although a few have large increases.

4. Southernmost limit - the furthest south record for this species is from Illovo, south of Durban (Oatley 1973a), but has rarely been recorded south of Durban since.

Range changes elsewhere

Zimbabwe: range extension to Mashumbi Pools along Zambesi River (Masterson 1987a).
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