Kalenderblad januari met gekraagde roodstaart 1917

"Kalenderblad januari met gekraagde roodstaart" (Calendar Leaf January with Collared Redstart) is a pen-and-ink illustration by Dutch artist Theo van Hoytema, dated 1917. The artwork is a calendar page depicting a redstart bird perched on a branch and a grid layout displaying the month of January. The detailed depiction of the bird and stylized floral elements around the calendar grid highlight van Hoytema's illustrative style. This piece is part of the Rijksmuseum collection and offers insight into the art of calendar design in early 20th-century Netherlands.