Today we have a wonderful sunny and warm weather. While walking I watched the birds. Flew quite low key big wild geese, and just then a couple of swans flew with a great noise overhead. On the path next to the wood saw from afar first yellow butterfly Common Brimstone. This species first appears in the spring. A little later I noticed a pair of orange butterflies. Those were the Small Tortoiseshell (Aglais urticae L.), which I later recognized when they were sitting on the ground. It was a really pleasant morning walk.