Broke the 50% barrier today with a whopping flock of 5 Aythya ducks on the lake at lunchtime, including a male pochard, the female scaup and 3 tufted ducks (1m, 2 f). Numbers of teal have also reached a dizzying 30 birds - this cold spell is really beginning to pay off! The calm conditions enticed me to have another squizz at the divers in the bay, but could only manage to find several red-throated divers and great northern divers. A winter plumage tystie was a good bonus though, as they can be tricky (69). Still heaps of winter thrushes around too, belting all over the place.