Thursday 24 January 2013

The Hala Starling Experience



The last few evenings, on the way home from uni, assuming I’ve coincided my arrival with the fading light, I have had the honour of what I can only describe as the Hala Green Starling Experience.  Hundreds, or thousands, of the birds have taken to roosting in the bushes which separate our gardens from those of the houses which back on to us, and, morning and evening, their flocks arrive and depart. When I was a kid I clearly remember walking with my dad and watching murmurations of starlings blackening the sky in Romford. The birds would roost in the trees which grew out of the roundabout, the junction of underpasses outside the library.  This must have been the late 1980s or very early 1990s, and birds change their distributions, and now, as far as I’m aware, spectacular murmurations in Metropolitan Essex are pretty much unknown. The Starling has declined in numbers by something like 70% since then, and murmurations do not happen over metropolitan Essex any more. 


Over suburban Lancaster, however, the situation seems to be rather different. There have been some huge flocks these past few days, I cannot hazard a guess as to how many birds were involved, but it must have been in the thousands, cloud-like flocks twisting and changing shape, the birds moving in close formation, coming in through the darkening sky, making several passes of the roosting bushes, a few individuals dropping out and perching there. A sparrowhawk at one point landed on one of the bushes into which they’d been flying and put some of the starlings up. Those deeper in the branches, presumably feeling protected by their enclosed position. The hawk went after those in flight, which swiftly joined the murmuration.  It went in for an attack and the birds avoided it, in a coordinated formation, a burst of speed moving like a wave through the flock. The predator seemed to manage to grab one, and was off pretty quickly.

Despite the paintwork on my car appearing to pay the price of these spectacular murmurations, it feels like something of an honour to watch such a wildlife spectacle over my home of an evening.  They continue chattering in their roost sites well into the night, especially if disturbed. Starlings generally behave like this only in winter, and the flock may have included birds which bred over a wide area, perhaps many of them breeding beyond these shores. Their murmurations are unpredictable, they may use one site for several nights in a row, and then, perhaps in response to weather or feeding conditions, they are not seen there for some time. Certainly, come the spring they will disperse again to their breeding habitats, and will perhaps disperse or move elsewhere long before that, but for the past few days the Hala Green Starling Experience has been a wonderful, and nostalgic, suburban wildlife spectacle!



Species Involved: European Starling (Sturnus vulgaris) Eurasian Sparrowhawk (Accipiter nisus)

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