She and her younger brother Walter Bertram (1872–1918) grew up with few friends outside their large extended family. Her parents were artistic, interested in nature, and enjoyed the countryside. As children, Beatrix and Bertram had numerous small animals as pets which they observed closely and drew endlessly. In their schoolroom, Beatrix and Bertram kept a variety of small pets, mice, rabbits, a hedgehog and some bats, along with collections of butterflies and other insects which they drew and studied. Beatrix was devoted to the care of her small animals, often taking them with her on long holidays. In most of the first fifteen years of her life, Beatrix spent summer holidays at Dalguise, an estate on the River Tay in Perthshire, Scotland. There she sketched and explored an area that nourished her imagination and her observation. Beatrix and her brother were allowed great freedom in the country, and both children became adept students of natural history. In 1882, when Dalguise was no longer available, the Potters took their first summer holiday in the Lake District, at Wray Castle near Lake Windermere. Here Beatrix met Hardwicke Rawnsley, vicar of Wray and later the founding secretary of the National Trust, whose interest in the countryside and country life inspired the same in Beatrix and who was to have a lasting impact on her life.