Tree Sparrows Passer montanus are found throughout Europe and Asia and differ from the more familiar House Sparrows by having a chocolate brown cap and a conspicuous black cheek spot.
I photographed this Tree Sparrow in the Seewinkel National Park in Burgenland
Tree Sparrows declined in the U.K. by a staggering 95% between 1970 and 1998 and are now "red-listed" as a species of high conservation concern. Accordingly, the
Royal Society for the Protection of Birds (RSPB) is cooperating closely with other professional and voluntary organisations and the farming community in order to promote practices that will encourage the recovery of this species.
Among the most important are modifications to agricultural practices (for example, the retention of stubbles through winter rather than ploughing in) and the provision of suitable nesting places. Fortunately Tree Sparrow readily take to nest boxes, and there have been considerable success stories in areas where nest boxes have been provided.
Part of this project involves RSPB Project Officer Catriona Glendinning (in collaboration with Cumbria Wildlife Trust, the Tree Sparrow Recovery Project and the Cumbria Waste Management Environmental Trust) who visited my research site at
Roudsea Woods and Mosses National Nature Reserve to install a batch of nest boxes of suitable dimensions favoured by Tree Sparrows.
Catriona arrives at Roudsea Woods and Mosses NNR with her
van loaded with nest boxes for Tree Sparrows Having established a suitable location to place the nest boxes, Catriona quickly gets to work nailing them up. Unlike many territorial species (e.g. the tit family) that are attracted to nest boxes, Tree Sparrows are colonial and so nest boxes are set up in clusters.
Now, it is a waiting game. I shall be responsible for monitoring the boxes over the coming years. The earliest possible occupation could be the spring of 2010 and we shall be waiting eagerly to discover if nestlings like the Tree Sparrows in the picture below are reared in the boxes.
A brood you young Tree Sparrows in a next box. Please click on the picture for image source.