This picture is of the bedeguar gall, more commonly known as robin's pincushion, and found on wild roses. It is caused by the Gall Wasp Diplolepis rosae laying her eggs in the plant stems and when they hatch the tissue swells up to form the gall.
A quiet day with very little in the way of migrants. 1 Wheatear still on the common, and 1 each of Reed Warbler, Chiffchaff and Willow Warbler in the compound,whilst a Whimbrel made a brief stop to rest up before heading off south.
22 birds were ringed, these being 8 Greenfinch, 6 House Sparrow, 5 Linnet and singles of Wood Pigeon, Reed Warbler and Wren.