Had a day off today so spent it in a bitterly cold Badenoch and Strathspey. The temperature dropped to minus two overnight and the frost persisted well into the morning. A Kingfisher and a Dipper on the Spey were unperturbed, the latter even managing to break into song. Other notable birds included parties of Redpolls and Siskin,  a hunting Kestrel, a very mobile Cormorant and a female Hen Harrier (which others saw but which I failed to locate).