A Year in the Valley

A Year in the Valley

Discovering the flora and fauna in a small square of Portmellon Valley

  • BioBlitz
  • The Rules
  • Tally
  • Map
  • Bird Page
  • Contact Form
  • The Big Butterfly Count 2023 – Speckled Wood and Gatekeeper

    The Big Butterfly Count 2023 – Speckled Wood and Gatekeeper

    Yesterday, there was enough sunshine to bring the butterflies out, so we decided to do the Big Butterfly Count 2023 run by Butterfly Conservation.  We had to sit in the garden for 15 minutes and count how many butterflies we saw.  We guessed it would be like the Big Garden Birdwatch where you count how many of each species you see at any one time, otherwise how would you know you hadn’t counted the same one twice.  We were pleased with the results –

    3 x Peacocks

    2 x Green veined whites (I made a point of checking the underwings to make sure the veins were obvious)

    3 x Small whites

    6 x Red Admirals

    2 x Meadow Browns

    2 x Gatekeepers

    1 x Speckled Wood

    The Speckled Wood (above picture) was just resting on a blade of grass.  It is so striking with its pale spots.  The spots change in colour according to the location.  They are white in more northerly locations becoming orange to the south.  This one was cream with a hint of orange.  The Speckled Wood obviously prefers woodland, but there is woodland further up the valley and willows, alders, and sea buckthorn in our patch, so it’s not far out of place.

    I was pleased to see a Gatekeeper (also known as the Hedge Brown or Small Meadow Brown).  I found out about it when I was identifying the Meadow Brown and then I was lucky enough to see one on a walk from Par to Polkerris.  It is quite common and is distinctive from the Meadow Brown as it has two white dots in the black spots on its forewings, and more orange generally.  It is found where long grasses are near trees and bushes, as is the case here.

    Daisy D

    02 August 2023
    Butterflies, moths, caterpillars
    Gatekeeper, Meadow Brown, Speckled Wood
  • Brown Butterflies – Wall Brown and Meadow Brown

    Brown Butterflies – Wall Brown and Meadow Brown

    This is the Wall Brown, living up to its name resting on a bit of dry-stone wall that stops our ramp from collapsing onto the steps.   Look how its white dots seem to pop out of the picture! 

    I wanted to know why so many butterflies have vibrant dots.  There are a few hypotheses about this.  The large ‘eyespots’ like those of the Peacock butterfly will fool predators into thinking that the eyes are of something much larger and more dangerous.  At the very least some are put off or confused by a jazzy wing pattern.  Smaller bright dots, like those on the Wall Brown serve as targets to divert predators from fatally wounding the butterfly by going for its head or body.

    The Wall Brown is found in grassland and the caterpillars are found on various grasses including Cocksfoot grass, which we have here.

    The Meadow Brown is also found in grassland and the caterpillars would have been enjoying our Cocksfoot grass.  It is quite common, and we have been chasing this one for a couple of weeks trying to get a good photograph.  At last it settled on the buddleia which overhangs our ramp. 

    Daisy D

    25 July 2023
    Butterflies, moths, caterpillars
    Meadow Brown, Wall Brown

©2023 All rights reserved.

  • October 2024
  • September 2024
  • August 2024
  • July 2024
  • June 2024
  • May 2024
  • April 2024
  • March 2024
  • February 2024
  • January 2024
  • December 2023
  • November 2023
  • October 2023
  • September 2023
  • August 2023
  • July 2023
  • June 2023
  • Spotted in September
  • Spotted in August
  • Spotted in July
  • Spotted in June
  • Conclusions