Our recent short ‘end-of-winter’ visit to Mossel Bay was made interesting by a Cape Weaver (Kaapse Wewer / Ploceus capensis) who had chosen the neighbour’s tree for his nest for the new breeding season. Although not in our garden, the tree overhangs our small lawn and as luck would have it the branch that was chosen by the Weaver was no more than 2 m from our bedroom window and marginally more from our balcony.
By the time we spotted it, the initial ring had already been woven by the busy Weaver and I promptly set up my camera at our bedroom window, linked it to my iphone (using the clever Nikon app and the built-in wifi connection of my Nikon camera), then sat in the lounge where I would not be seen by the bird and clicked away whenever the Weaver appeared on my iphone screen. I love it when technology comes together!
This technique produced some clear shots of it arriving at the partial nest with a length of grass or piece of leaf and as it set about the intricate task of weaving it into the growing structure. Fascinating to watch as the nest slowly grew and took shape. Once the nest was more or less complete and well-shaped the Weaver shifted his attention to the thin branch to which it was attached, stripping it of leaves – we could only guess this was a strategy to prevent unwanted “visitors” from using the foliage to conceal their approach.
After a couple of days of frenetic activity the bird seemed satisfied – except nothing happened, no female took occupation and the nest just hung there, unoccupied. A very windy day tested the nest structure to the limit and it seemed to withstand the battering without damage.
Then a day before we were to leave, a second ring frame appeared, attached to the outer wall of the first nest and we once again watched fascinated as the same Weaver set about building a “semi-detached” extension to the nest. This is not something I have seen before although Weavers are known to build more than one nest, often several, usually in different locations in the same tree, before the female of the species indicates her acceptance and takes occupation. (Right now I am resisting the temptation to make some further comment about this behaviour, relating to the female of another species that I am familiar with….)
Unfortunately we could not stay to see the outcome of this new development – perhaps there will be some evidence of the outcome when we return in November.
Anyway, here is a selection of the photos I took surreptitiously of the Weaver
Arriving at the nest with fresh grass strand
Starter ring being constructed
A bit of displaying might impress her
Saturday, one week later
You think semi-detached will work better? – Yes, of course dear!
Now where does this one go again?
I really don’t like being watched while I’m weaving
Wonder if this one is going to be good enough?
Can’t wait to see what happened!
6 thoughts on “Nest building 101 – Cape Weaver does his thing”
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Was fascinating to watch
I find it interesting that YOUR Cape Weaver is not as brightly coloured as MY Cape Weaver that I showed in a recent blog entitled MASTER BUILDER that I published on 10/9/2017.
I saw your blog and can only agree – “my” Cape Weaver hasn’t got into full breeding plumage yet – while yours has the orange-brown wash over the face and neck of the typical breeding plumage. It didn’t stop him from putting in a full-blown effort!
It really is quite incredible, Donald – and they say ‘bird brain’ in a derogatory manner!
They are so good at it!