Tree Sparrows, such delightful birds, are really in serious decline. They can be easily identified. Their cousins the House Sparrows have grey caps while Tree Sparrows have brown caps, and Tree Sparrows have the dark cheek spot you can see in the photo. These individuals were seen recently at the appropriately named Tree Sparrow Farm, just inside the Old Moor RSPB reserve near Barnsley. Conservationists, farmers and landowners are trying to turn the decline around, providing seeds for Tree Sparrows and other declining farmland birds through winter. They nest in groups or small colonies, and can have three broods a year. If you see any, TreeSparrow.com wants you to report them- they are beginning to nest a bit more in rural gardens, where people provide year-round seeds and small clusters of nest boxes- information on the above mentioned site.