Some more Borders Butterflies

In addition to the fabulous butterflies I saw this year on our property, I went on a few trips around the Borders to look for other species.

On 10th May I drove over to the Berwickshire Coast to look for Small Blue butterflies. These are such endearing wee butterflies that I feel it is well worth the drive over to see them.

The day I had chosen to do this turned out to be a lovely sunny day, although there was a cool wind coming in over the sea. However, I still managed to see about 35 Small Blues as well as a good variety of other butterflies.

I had heard that Green Hairstreaks had been seen in a location a few miles from where I live. So on 18th May I went for a walk up a lovely forestry track that I have often driven past previously. I had always thought that it looked as though it could be an interesting walk and a few years ago the trees were felled in the area, opening it up. Again, I was blessed with good weather and I was really excited to spot a Painted Lady on my way up the track. This was the first one I had seen since 2022, although it only landed for a couple of seconds and then it disappeared across the hillside. At the top of the hill a large area had been planted with young Spruce trees, but there was a clear edge to the plantation, which I followed.

This looked good, as everywhere else I have seen Green Hairstreaks there has been Blaeberry growing with conifer trees behind it. Eventually I spotted a small butterfly flying around which turned out to be a Green Hairstreak when it landed.

In a short time I spotted at least six of them there. I am a little concerned that the area may become shaded as the trees grow up, but hopefully there is sufficient space to allow the sun to still get there.

I volunteered to do some Northern Brown Argus surveys in the local area this year. This involved a visit to the valley above our house on the 6 June and the 15th June to count butterflies and eggs. They still seem to be doing well there, but the Rockrose is becoming more and more overgrown as grazing was stopped there about 20 years ago.

I also visited the next small valley a little further up the road on the 21st June where I spotted a couple of Northern Brown Argus, despite there being very little suitable habitat remaining. I think I will have to go and check for hidden clearings behind the trees next year.

I had also volunteered to survey Small Pear-bordered Fritillary in the area, so I was able to combine this with the Northern Brown Argus surveys. There are a few in the small valley above our house and some others in the other valley a bit further up.

The big question was are these isolated colonies, or one continuous colony. I am not sure what the answer is. They were certainly all along the other valley and I saw a few when I was clambering back over the hill towards our valley.

As I mentioned in my previous post, most years I see one or two Scotch Argus on our land. This has always intrigued me and I have always suspected that there is a local colony and I am seeing strays from that colony. So, on the 2nd August I went for a walk along the valley up the road. When I had been looking for Small Pear-bordered Fritillaries I had seen a few places where I imagined Scotch Argus could occur.

And I was delighted that at the first one of these locations I spotted two dark butterflies, which on closer inspection were Scotch Argus. A little further along and I saw another. I climbed up off the track and found grassy area where I found about 15 more Scotch Argus.

About another 500 metres further along the path I found another in a very unlikely location - an area of dry stumps and branches where some Spruce trees had been cleared. When I got to the end of the valley I had the choice of a very steep climb up out of the valley or turning around and retracing my steps. Luckily, I chose the steep climb, because as I walked down to the stream I spotted some more Scotch Argus. Once on the other side there were loads. I counted more than 80 in that area. 

And towards the top of the very steep slope I found two more. I was so delighted to have found so many Scotch Argus locally in an area where they haven't previously been recorded. However, best was yet to come, as I descended into our valley I saw another six Scotch Argus along a grassy area near where I normally see the Northern Brown Argus.

So, it seems they occur in quite a few places locally. Now I am thinking I will need to go and look for them in the other direction next year.

We were blessed with great weather this summer, so I was able to go out at the weekends to search for butterflies. So often in the past I plan to go on a butterfly hunt, only for the weather not to be good enough for them to be flying. It really was a great year.