Birds in the blocks
Not concerned that they were designed for House Sparrows, a Blue Tit family has been incubating their brood in one Union Street Urban Orchard ‘duplexes’ over the last few weeks.
Blue Tit leaving Nestworks Block at the Union Street Urban Orchard. Photo: Peter Thomas
The adapted readymades, fashioned from a standard Lignacite block, were the first prototypes installed for the 2010 London Festival of Architecture, so its fitting that they were also the first to be occupied.
Commissioned by the Architecture Foundation as a permanent legacy for the festival, Nestworks feature in the ‘Union Street Urban Orchard Book : A Case Study of Creative Interim Use’ which will be available from The Architecture Foundation website and at the book launch tonight.
Urban Birds
Around Valentine’s Day courting birds across the UK will begin inspecting potential nesting sites. Informed and inspired by ornithological derives with Peter Holden MBE, 51% studios architecture has planted scores of ‘assisted readymades’ across the Bankside Urban Forest to increase the variety of nesting options open to its urban birds, many of whom are on the endangered list.
We discovered that the standard hollow block used to build some of London’s most celebrated architecture is made from concrete bulked with recycled woodshavings, a material that when used in nestboxes is proven to fledge more young than any other.
Synergistically the interior block dimensions are text book size for house sparrows, radically in decline in the area. Other species designed for are blue tits, great tits, starlings, wrens, robins and blackbirds.
A website, www.urbanbirds.net, launches on Valentine’s Day to allow nesting activity to be tracked by families and bird lovers across the area. Nestworks is a public project and a people’s project, commissioned by the Architecture Foundation as a permanent legacy for the London Festival of Architecture.
Urban Birds Nestworks
51% studios has designed three Nestworks for the urban birds of Bankside featuring a series of sophisticated readymades: blocks, boughs and bushes as part of the London Festival of Architecture.

The design is responsive, site specific and provocative: informed by ornithological derives with Peter Holden, locally celebrated for initiating the annual peregrine falcon public views at Tate Modern. The project was commissioned by the Architecture Foundation, and takes its inspiration from Witherford Watson Mann’s Bankside Urban Forest Strategy.
Nestworks 1 2 3 are a direct response to the festival’s theme of exchange: of knowledge, habitat, materials. We discovered that the standard hollow block used to build some of London’s most celebrated architecture is made from concrete with 55% recycled woodpulp, a material that when used in nestboxes is proven to fledge more young than any other. Synergistically the interior block dimensions are text book sizes for house sparrows, radically in decline in the area. Other species designed for are blue tits, great tits, starlings, wrens, robins and blackbirds.

Nestworks 1 2 3 is a legacy project delivered with support from Peter Holden, the Architecture Foundation, Riverford Organic and Lignacite.
Maps showing locations of the Nestworks, some of which are hidden, will available in the Orchard at Union Street from June 19th, or to download.
A related birdwalk and a new talk by Peter and Andy Holden will take place on Saturday 3rd and Sunday 4th July. Peregrine viewings at the Tate are daily from 12 noon to 7pm, 17 July to 12 September 2010.


















