Hitchin, Hertfordshire: It’s not quick, it’s not graceful, but these early nesters are hard at work in preparation for egg-laying in a few weeks

Is it too early to whisper the S word? If so, I blame the magpies. Every day for the past two weeks, while enjoying my morning cuppa in bed, I’ve been watching a pair nest-building in a Norway maple across the road. But though the arrival of spring advances each year at a faster pace than any other season, the magpies’ calendar is not out of kilter. Like their corvid cousins the rooks and ravens, they usually start nesting in winter, occasionally as early as December.

Now, a fortnight in, they’re shoring up the bowl-shaped platform in a fork between three upper branches. The movement of their swinging tails as they manoeuvre twigs into place looks graceful, even balletic.