Flat calm frosty morning. A Water Rail was in the observatory compound, 6 Long-tailed Tit were along View Point Road, 2 Linnet, Chiffchaff & Greenfinch still present. Offshore 267 Black-headed Gull moved south pre sunrise presumably coming out of roost. Also moving southbound 11 Brent, 5 Red-throated Diver, Shag & a Skylark overhead. 210 Common Gull in the river is worth a mention as they have probably been forced to the coast by the heavy frost inland.