I’ve just received a call from Chris Orsman from the RSPB London House Sparrow Project.
Until now, they've been monitoring 66 sites around London on a roughly monthly basis, half of them fed with live food and the other half (including ours) are control sites. They are now dropping sites with fewest House Sparrows and intend to monitor the remainder (including ours) on a weekly basis.
To this end Chris, armed with clipboard and binoculars, will be peering over garden hedges around Hilly Fields Park surveying the nesting sites, many of which are in our roofs. Before he begins this new phase next week, Chris intends to visit those houses to introduce himself and assure you he’s not up to no good!