Issued in 1957, this 5¢ definitive stamp from Canada beautifully portrays the Common Loon (Gavia immer), one of the country’s most iconic birds, known for its haunting calls across northern lakes. Designed by Emanuel Otto Hahn, the engraving captures the bird’s distinctive plumage and elegant movement on water, accompanied by a pine branch symbolizing the Canadian wilderness. Printed in black, the minimalist yet striking design reflects the aesthetic of mid-century Canadian engravings. This issue remains a favorite among collectors for its strong national symbolism and crisp craftsmanship.