US social scientist Kenneth Boulding : ‘If you believe exponential growth can go on in a finite world, you are either a madman or an economist’.

Wednesday, 21 July 2010

21/7/2010: Barnehurst and Crayford miscellany

To the River Cray via Barnehurst Golf Course, Perry Street roundabout and Thames Rd., back later via the pub and Thames Road Wetland (TRW).

There was a Small Copper butterfly on the grass at the golf course as I headed up the hill by Taunton Close, and near the summit a Speckled Wood.

In the Perry Street/Wyatt Rd section of rough ground were 2 Fennel plants, Gatekeeper butterflies and a Latticed Heath Moth. In the Thames Rd/Gascoyne Drive part were Wild Carrot and 3 White Melilot.

Along Footpath 106 by the Cray were 2 or 3 female Banded Demoiselle and a male, plus several Blue-tailed Damselflies.

A Comma was seen. 3 Gatekeepers were feeding on Common Ragwort flowers. A Red Admiral flitted through the Riverkeepers' yard.

Later in the garden of the Bear and Ragged Staff in Crayford town centre a Holly Blue fluttered over an ivy-clad wall and a Comma landed nearby. A male Blackbird was eating fallen cherries.

On the way home along By-way 105 I passed this clump of Galingale (Cyperus longus), a distinctive and attractive native sedge, often planted, so it may not be 'indigenous' to the area. There was also some along Footpath 106. Another Red Admiral was seen along the By-way.

For some time now there have been large numbers of Grasshoppers along the Thames Rd side of the TRW. Now they are getting to adulthood and I had my Grasshopper ID book with me. A few were carefully caught, one at a time in a clear plastic bag, and identified as Lesser Marsh Grasshoppers (Chorthippus albomarginatus), adding another species to the roster here. It is said to be increasing its range and is no longer confined to damp habitats. As the light began to fail I also found Field Grasshopper (Chorthippus brunneus) on the site.

Around 12 Swifts were over the Mayplace Av./Thames Rd junction.

Closer to home a patch of the white-flowered Soapwort was in bloom in the corner of the Perry Street Farm field by the caged ball-playing area on Gascoyne Drive. There was a Meadow Cranesbill (Geranium pratense) just about in flower in the roadside grass verge, having been 'dwarfed' by the mowing regime. In the next field along, towards Wyatt Rd, the lack of grazing had contributed to a good show of White Campion in flower, and Wild Carrot too.

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