PHOWN summaries and records

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PHOWN species summary

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See published breeding information below the map.

Bertram's Weaver Ploceus bertrandi

(species text)

PHOWN priorities: none yet

Most recent PHOWN record for this species (recent thumbnails and full species listing at end of this web page):

Vm 30690

No of records in PHOWN for this species: 1

Colony size

Colony size for this species in PHOWN (min - mean - max, sample size) and published data:
PHOWN Handbook of the Birds of the World, Vol. 15
- - (n=0)Solitary nester
Compare colony sizes of different weaver species with this species here.

Nest site

Type of nest site for this species in PHOWN:
tree - 1

Breeding seasonality

PHOWN Records per month for this species


Handbook of the Birds of the World, Vol. 15
Apr in Tanzania, Nov-Dec in Zambia and Aug-Apr (also record of fledged young fed by adults in May) in Malawi

Figure above right: breeding seasonality shown as records per month (if available), where months are numbered from January where January=1 etc.
The records are grouped into 6 regions: Safr=southern Africa, Cafr=central Africa, Wafr=western Africa, Eafr=eastern Africa, Asia=southern Asia, IO=Indian Ocean islands
Read more about these figures here.

Breeding distribution

Google map of records for this species (you may need to zoom out to see all records)

Google map showing distribution and PHOWN records for the weaver species.
Yellow areas show distribution of the species; for species with small ranges you need to zoom in at the correct area to see the range. Read more about these maps here.
PHOWN pin colours show Nest site type:
- Reed
- Tree
- Man-made
- Other
- Nest Record Cards
CLICK on the marker on the map to see individual record details.

Published breeding information

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

Apr in Tanzania, Nov-Dec in Zambia and Aug-Apr (also record of fledged young fed by adults in May) in Malawi
usually placed at tip of branch of thorny acacia (Acacia) or in evergreen tree, often near a stream
no information
Solitary nester
2 eggs
deep green, heavily marked with red-brown spots and blotches
size 22.5 x 16 mm (Malawi)
no information
young fed by both sexes

Thumb-nails of most recent PHOWN records

Click on one to see its full record

Vm 30690

List of all PHOWN records for this species

Click on one to see its full record
30690, 2021-8-18,0,Malawi, Satemwa tea estate on the slope of Thyolo Mountain, Oschadleus HD; John Wilson; Bentley Palmer, tree

All PHOWN news items relating to this species

The headers below refer to Weaver News items featuring PHOWN and this species. Click on a header to see the News item, which includes the full news item. (The number in brackets is the date that the news item appeared on Weaver Watch).

Weaver Wednesday [210] - Discovery [93]: Bertram's Weaver (2016-06-22)
Weaver Wednesday [80]: Bertram's Weaver (2013-12-25)