Friday, 30 June 2017

Butterflies in Halling Wood, 26th June 2017...

Two less common species were present in good numbers this year in Halling Wood, particularly the Silver-Washed Fritillaries.  Given that these woods are a pheasant factory for the local shoot, how any caterpillars survived to make it to the adult stage is amazing.  The Silver Washed Fritillary caterpillar feeds on violets on the forest floor, and pheasants (not a natural UK bird) go mad for them.  I believe these feathered rats are the reason for decline of the fritillaries in general, particularly the High Brown, which tends to frequent more open habitat.

The more pheasants get blasted, the better, as far as I am concerned.

Female Silver-Washed Fritillary
Underside, showing the silver bands that give the butterfly its name
The male butterflies are not as easy to photograph. They are a brighter orange and the forewings have four or five broad dark veins. There were plenty of them but they are very wary, restless and active, constantly gliding up and down the woodland paths, chasing and fighting with each other and checking out anything that might be a female.  They are a spectacular sight. I saw this female crawling around some violets by a beech tree.  They lay their eggs on tree trunks near patches of violets, so I watched this one for a while but she got spooked and flew off.

White Admirals are my favourite butterfly, although they are quite scarce.  This one came down to drink from a mud puddle, though they are partial to bramble blossom.

Female White Admiral
The females tend to be slightly browner than the males and the hind-wing orange markings are more obvious.  They lay their eggs on honeysuckle, which is not too common in these woods.  They obviously manage though.

White Admiral, underside
White Admirals are sometimes called "gliders", as they beat their wings and then glide for long distances. They are fast and powerful flyers, and love flying up and down sunlit woodland paths.  They are a joy to watch.


Sunday, 25 June 2017

Luddesdown in June...

From the edge of Wrenches Shaw, looking towards Cobham

From the edge of Wrenches Shaw, looking towards Luddesdown church

From Cutter Ridge Road

From Cutter Ridge Road
Taken 23rd June 2017

Saturday, 24 June 2017

Ragwort in bloom...

Southern Valley, looking east
Taken 20th June 2017

Tuesday, 13 June 2017

Scenes from the Brockles in Summer...

Looking south-east

Marbled White butterfly and bumble bee on scabious

Looking south-west
Taken 13th June 2017

Sunday, 11 June 2017

Cuxton Church bellringer's outing to Suffolk, 10th June 2017...

St.John the Baptists, Thaxted
Windmill, Thaxted
Barley fields, Thaxted
St. Mary's, Cavendish
Cavendish village green

St. Mary's, Glemsford
St. Mary's churchyard
Church of the Holy Trinity, Long Melford
Church of the Holy Trinity, Long Melford

Churchyard, Long Melford

Saturday, 13 May 2017

Mays Wood, 13th May 2017...

Red Admirals used to be restricted to an annual immigrant population, and were a lot less common than they are now.  These days, our milder winters allow both adults and the caterpillars to survive. This battered warrior obviously managed to overwinter here...

Red Admiral
I saw a much less tatty individual a bit later. It had probably overwintered as a caterpillar and had emerged from a pupa in the past few days or so.

Red Admiral
The wild garlic was in spectacular flower this year...

Wild Garlic (also known as Ramsons), Mays Wood...

Sunday, 30 April 2017

Tortoiseshells in April...

Small Tortoiseshell, Lower Bush, April 1st.
Small tortoiseshell larvae and old larval tent, 23rd April 2017
These once-common butterflies are sadly in decline, largely thanks to a parasitic fly Sturmia Bella. These disgusting brutes have found their way over to the UK from continental Europe and have survived due to our milder winters these days. They lay their microscopic eggs on the nettle leaves where the caterpillars are feeding.  The caterpillars ingest the eggs, which hatch out inside the caterpillar. The fly larvae eats away the caterpillar's insides, but not so much as to kill it before it pupates.  Once the host caterpillar pupates, the fly larvae eats its way out of the host and slithers off to pupate itself.

Caterpillar losses can be 100% from a colony such as above, although fortunately this lot seemed to escape parasite attack and seemed to produce a fair number of adult butterflies given be the numbers I saw in May.  I took a dozen or so of this colony and raised them all to adults, releasing the butterflies just to try and make sure there will be a few around to keep the local population going.

All of the nettle-using butterflies (Small tortoiseshell, Peacock, Red Admiral and Comma) suffer from Sturmia attack, but the tortoiseshell and peacock are hit worst because the caterpillars live in colonies, making it easier for the fly to pick them out.