Gulls chasing Bat

gulls chase bat

10.52 am, Newmillerdam near main car park, sunny slight breeze: There’s a commotion amongst the black-headed gulls and a boisterous flock of 20 or 30 of them swoop and tumble over towards me from the outlet corner of the lake. At first I think that someone must be feeding the ducks and they’re falling out, as they do, over a snatched crust.

Then I notice that the pale brown ‘crust’ is moving about on its own account. My first thought is that for some reason the gulls have ganged up on a sparrow, but the manoeuvrability is un-sparrowlike and I wonder for a moment if it could be a late swallow or martin.

One of the gulls briefly captures it and it’s not until it escapes that I can see that it’s a small bat. It dodges around then escapes into the lakeside willows where the gulls can’t follow it and the gulls head off back towards the outlet.

Bats in the Lime Trees

lime fruit and leaf
Fruit and leaf of Common Lime

Lime trees, particularly a variety of the Common LimeTilia X europaea, with a columnar shape, were a favourites with the Victorians and were planted in the grounds of a now-vanished villa, here in the Dearne Valley between Barnsley and Rotherham. The century-old trees were given preservation orders when new houses were built in the old walled garden.

Unfortunately, even with preservation orders, trees do eventually start to die back and one of trees here needed major surgery to keep it alive.

The nursery colony of pipistrelle bats which were resident in its cavities each year during the summer months moved to snug new quarters the following summer, in the apex of the house next door.

On Saturday evening, around 9 p.m., we watched them emerging and lost count of home many there were. I’d say well over a hundred. There would be a pause and then several would shoot out one after the other.

Some of them headed straight for the tree that had been their nursery roost, others hawked about overhead, appearing and disappearing at lightning speed in the gathering gloom above us.

 

sandstone boulder

We’re on coal measures here. This sandstone boulder serves as a garden feature at the foot of a still-thriving lime.