We moved to this house in the Scottish Borders at the start of 2020 and since then I have been mostly working from home. During my lunch hours I tend to take the dogs for a walk around more or less the same route and I keep a note of the butterflies I see. I then keep a record of the highest number of each species I see each week. So, I now have four years' worth of butterfly records to compare.
Each year the weather has been quite different and that has had an impact on butterfly numbers. The weather was not great in 2023 with a lot of easterly winds. Spring started quite late but dry, but from July onwards it was cloudy and wet.
Also, I have been spending a lot of time trying to improve habitats and plant different plants to attract butterflies. I would like to think that the effort is seeing rewards.
The main areas where I see butterflies is in the meadow I have been developing, on some Buddleia plants and, this year, in an area where I had some Spruce trees cut down, where I have replanted with native trees. The area is now quite grassy, with various other plants such a Fox Gloves and wild Raspberries.
The four species of white butterflies were interesting. Orange Tips generally had a good year. The first sighting was a week later than normal, but they were about in good numbers.
I saw more Small Whites than I have in previous years, but they were never seen in high numbers. I had found a number of chrysalises last year, which I kept in a cage over winter. 29 of them emerged over a period of a month in April and May. However, I never saw them in big numbers and, strangely, I didn't find any caterpillars on the Nasturtiums this year.
Conversely, Green-veined Whites didn't have such a good year for some reason. I always associate Green-veined Whites with damper areas, so possibly last year's dry summer didn't agree with them.
Large Whites had a fairly average year. I had been expecting to see a lot of them, because there were a lot of caterpillars last year and there were several chrysalises on the house. Again, this year, I didn't find any caterpillars on the Nasturtiums, which is unusual.
Last year was a really good year for Ringlets and this year wasn't quite as good. Overall, their numbers have gone up here over the last six years. I would like to think this is in part the result of some of the habitat work I have done.
2023 was a really great year for Meadow Browns here. I recorded 103 individuals, way up from the previous high of 21. As with the Ringlets, I would like to think that the Meadow Browns are enjoying the way I am managing the meadow. The high numbers of these two species may be a result of the weather the previous year, when eggs would have been laid and the caterpillars emerged. 2022 was a very dry summer. It will be interesting to see how they do this coming year after last year's wet summer.
I only saw 2 Small Coppers here last year. They had done really well the previous year, so I don't know why there were so few in 2023. There are plenty of food plants for them here, so I can only assume that it was the weather that didn't suit them.
Interesting report Nick.Look forward to part 2.
ReplyDeleteThank you Peter.
DeleteI really like the white butterflies. Your dog is charming.
ReplyDeleteThank you Maria. Mini the Labrador is my constant companion. She is always keen for me to throw a stick for her!
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