Naturalists' News and Sightings


Radley Lakes Trust


The Trust held inaugural events on 25-26 September.

On Saturday 25 September there was a chance to meet the team, hear about progress, view displays and ask questions.  This was in the Silk Hall at Radley College. On Sunday 26 September there were two guided walks at the Lakes, suitable for all ages: one based on Thrupp Lake and one on Barton Fields.

updated: December 2021

Annual Hay Cut Barton Fields


Last week the main meadow at Barton Fields was mown and stacked. The hay is removed to ensure the nutrient levels are kept low - although this year the Thames flowed through part of it  twice for several weeks and the vegetation was high. On Wednesday the meadow was cut by a tractor-powered giant rotary mower. On Thursday and Friday the cuttings were raked into piles for drying and some stacked by members of the Barton Fields Green Team, who were joined on Saturday morning by over 20 of the Abingdon Green Gym and three members of the 2nd Abingdon Scouts with two leaders to complete the staking and re-rake the whole meadow. The compost heaps slowly decompose and provide excellent sites for the Grass Snakes to lay eggs in the Spring, as evidenced by the number of this year's hatchlings relocated from last year's heaps to avoid being smothered by the new hay layers.


from Graham Bateman: 1 September 2021

Development threats to Nyatt Field


Nyatt Field which lies upstream of Abingdon Lock suffered trauma last autumn when the Community Woodland bordering the Thames was felled.  It is a floodplain meadow about 20 hectares in area and has many characteristic floodplain plants, though not the plant assemblages of meadows such as Long Mead at Eynsham and Pixey Mead NW of Oxford, mowed in early summer for centuries, which consequently have developed the species rich Meadow Foxtail / Great Burnet (MG4) plant assemblage.  Nyatt field is mowed in autumn which removes scrub and in spring Marsh Orchids and later Pyramidal Orchids (hundreds) are found there.  In summer tall herbs such as Meadow Rue, Hemp Agrimony, Yellow Loosestrife, Grass Vetchling, Tufted Vetch and many others are found in abundance.  The pictures show Yellow Loosestrife which at present dominates several acres of the site.  Unfortunately there is outline planning permission for this meadow to be dug for gravel!

from David Guyoncourt 29 July 2021

Spring has sprung!


What a weird spring it has been. In Barton Fields yesterday there was a Brown Argus butterfly sheltering in low vegetation from the cool conditions. However the wet weather has provided an unseasonable boost for fungi - in the woodland beside the Sustrans Track I found 5 species. Can anyone identify the inkcap in the photos?


from David Guyoncourt 27 May 2021

Radley Lakes Masterplan

Proposals for a New Future for Radley Lakes

A masterplan launched on 10 May proposes a new future for Radley Lakes, a 136 ha area of former gravel quarries. The plan sets out a vision for the Lakes, focussed on protecting wildlife and providing valuable green space for local people. Major funding for implementing the plan will come from ‘Community Infrastructure Levy’  receipts held by Radley Parish Council. The plan is being launched by the newly-formed Radley Lakes Trust.

 Find out more...

from David Guyoncourt: 10 May 2021

River Ock Swan Family


The River Ock swans have produced another brood - seven cygnets this year. They are not big enough yet to upend, but seem to be able to forage from the water surface.

According to: Swanlife-

‘when the cygnet hatches, not all of the yolk inside the egg would have been used up as a food source. So, when it emerges from the egg, it adsorbs the remains of the yolk into its body. This acts as a significant source of nutrients for the young over the next week to ten days’

from David Guyoncourt 21 May 2021