Red-Breasted Goose and others

One (presumably an escape) flew south across Cors Caron late this morning. The first wildish one I've seen as far as I can recall. Yesterday, whilst surveying Willow Tits I came across a group of 3 together in the same small tree. Also something I don't recall seeing before. Only one was singing and one of the others was quickly chased away. Perhaps a pair and a spare individual? Other recent sightings; a visitor saw a Barn Owl at Denmark Farm on the 8th and a work colleague saw another on the 18th at Post Bach, on her way to work.