Thursday, September 17, 2020

Horseshoe Plantation - 17th September

In the stiff breeze at Horseshoe Plantation there were still some good looking butterflies to be seen including Adonis Blue, Brown Argus and Common Blue, even a Chalkhill Blue, and some Small Coppers plus Clouded Yellow, Wall Brown, Small White, Small Heath and Meadow Brown. Since this may well be my last visit of the year I thought I would provide a brief end of term report on this site. During the past two years I have found 32 different species at this relatively small area of downland by the sea near Eastbourne. 2020 seems to have been a good year for Grizzled Skipper, Green Hairstreak, Wall Brown, Adonis Blue and Silver-spotted Skipper compared to 2019, all the more encouraging since the area to the east of Belle Tout Wood was sectioned off in Spring and grazed by 3 ponies which impacted the butterflies. Next year it is the turn of the west section towards Birling Gap. There are small colonies of both Small Blue and White-letter Hairstreak but they only number a few butterflies, it's not clear to me why they are not also flourishing, particularly the Small Blues. I have only seen a single Small Tortoiseshell in two years and this year no Painted Ladies. However, Dark Green Fritillaries were plentiful in 2020 and there are now daily sightings of Clouded Yellow. I have yet to record Orange Tip or Ringlet, maybe next year.

male Adonis Blue
male Adonis Blue
male Brown Argus
male Brown Argus
female Common Blue
female Common Blue

There were also several Common Darters and a Migrant Hawker enjoying the sunshine.

female Common Darter
Migrant Hawker