Author: Mark

Born Bristol, UK Educated: Cleeve House School Bristol, Bristol Grammar School and Downing College Cambridge Ph.D. University of Aberdeen, Winter activity of pipistrelle bats. NERC post-doctoral Research Fellow, Edward Grey Institute, Oxford University Former Conservation Director of the RSPB, 1989-2011

Oscar Dewhurst – Canada Goose

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Oscar writes: this was taken earlier in the summer in Richmond Park, when there was a thick layer of mist over the pen ponds. There hadn’t been much deer activity, so I had a look on the ponds for any birds I could photograph before the mist burnt off, and luckily the flock of Canada…

Wild food (24) – Wood Sorrel by Ian Carter

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This small, delicate plant is easy to overlook with its diminutive stature and uniform pale-green colour, but once you start looking out for it you will start to notice it everywhere. The trifoliate, heart-shaped leaves can be found throughout the year in a wide range of habitats, though it is less common (and less palatable…

Tim Melling – A Butterfly Mystery

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Tim writes: Clouded Yellows (Colias crocea) have a small proportion of females that have a white ground colour instead of yellow, and this form is known as helice. This is one such female but there is a problem, as this isn’t a Clouded Yellow. This is an African Clouded Yellow (Colias electo) photographed in Ethiopia…