Born in San Francisco in 1956, Karl Mårtens is a Swedish wildlife artist renowned for his expressive watercolour paintings of birds. Raised in Drottningholm, near Stockholm, Mårtens has spent much of his life moving between North America and Europe, living in Sweden, Canada and California before returning to Stockholm, where he now resides. Widely admired for his distinctive approach to wildlife painting, Mårtens has devoted his artistic career to capturing the beauty, movement and individual character of birds. His fascination with the natural world began in childhood, when he first started drawing and studying birds. Over the decades, his technique has evolved from highly detailed ornithological studies into the expressive, fluid watercolour paintings for which he is celebrated today. Drawing upon an extraordinary knowledge of his subjects, Mårtens paints largely from memory, creating original watercolours of birds of prey, waterfowl and wildfowl that convey not only their physical appearance but also their vitality, movement and spirit. At the heart of Karl Mårtens' bird paintings is a remarkable balance between artistic discipline and spontaneity.

Influenced by Eastern and Western philosophies, particularly Zen Buddhist meditation and the traditional practice of Japanese archery, Mårtens embraces intuition and the unpredictable nature of his materials. Working with Japanese and Chinese brushes, watercolour, charcoal and handmade paper, he paints from above onto sheets laid across his studio floor. This distinctive technique allows pigments and water to interact freely, producing delicate washes, expressive brushstrokes and an extraordinary sense of movement. The resulting wildlife paintings capture the fleeting gestures and individual personalities of birds with remarkable sensitivity. Gladwell & Patterson has enjoyed a longstanding association with Karl Mårtens, having first discovered his captivating watercolour paintings of birds of prey. In 2009, the gallery presented Mårtens' first solo exhibition in London at its former Mayfair gallery, W.H. Patterson. Since then, his original bird paintings and wildlife watercolours have continued to captivate collectors internationally, admired for their technical mastery, expressive freedom and profound connection to the natural world.