October 30th, 2010. A beautiful afternoon, the finest of mares’-tails flicking a high blue sky, sunny. Yet in a three hour walk I see little of note. The land is lit, warm, coloured by autumn, and empty. Almost. I am just outside the village, on a track behind the last row of houses, when a large bird flies slowly overhead, not high, dark against the light. I know it from its unmistakable profile. It’s a cormorant. Only the second I’ve seen in these parts. To see one even is remarkable – for we have no large inland waters nearby, only the small forbidden lake on the airfield and four miles away, out of my range, the flooded gravel pits at the Country Park. Could the cormorant be flying between the two? There are geese I know on the forbidden lake, and then there’s the great crested grebe I found the other day, wounded, beyond the horse pastures, that could only have wandered from there. Perhaps there are cormorants too, and other unknown treasures. I must find a way to visit.
I edge along the side of a large ploughed field. It has been worked right up to its bounding ditch and hedge, leaving no verge at all. The soil is wet and I am soon carrying a slab of mud on each boot. In the shade of an ash-tree, silver mushrooms have pushed up through the dark clod. I’ve never seen anything like them – brushed-metal capsules, immaculate. They only occur close to the ash – beyond, there are none. They must live together in some sort of symbiotic relationship. Out in the bare expanse only a few rooks, pigeons and gulls pick at the ground. I turn into Gun’s Lane, medieval mudway to Cambridge, lined with pale yellow blackthorn and reddening hawthorn. Up ahead a flock of two-dozen migrating redwings settle into a tree-top, but as soon as I get near, they take off and fly up the track into another. They are very flighty these birds, and won’t let me get anywhere near to get a close look. They keep to the tree-tops.
I walk through the scrubland, a pasture, the badger dell, and back down the long, straight line of water euphemistically called Histon Brook without seeing or hearing anything except for one or two woodpigeons. Not even a rabbit. Extraordinary. The fields should be flocked with migrating birds. The landscape has not been so empty all year. As I near the village, though, there is one single eruption of life. The sun is balanced on the western horizon, a blinding white light. I am surprised to hear, half a mile away, a once familiar hubbub. The rookery at Westwick is loud again. I thought it had been abandoned some time ago but I’ve not passed by for awhile. There is a commotion of rooks above the trees, restless, excited. Then they begin to stream outwards in small, loose groups, flying westward, straight into the sun, group after group, until the last one leaves the rookery and there are one hundred and forty rooks ( I count them) in a long, straggling column, making their way slowly across the evening sky. I go to the rookery and look up into the tall stand of sycamores, studded with nests. It is utterly quiet, deserted. Not a single bird remains. Why would rooks leave their rookery just as the sun is about to go down? Don’t they roost here at night? And where do they go? Not that I really, really want to know. I’m just glad to report that there are mysteries still in the world.