From the renowned author of the New York Times bestseller The Sibley Guide to Birds, this beautifully illustrated wall calendar is an essential companion for birders throughout the year.

David Sibley's exacting artwork and wide-ranging expertise bring observed behaviors vividly to life. This is the perfect occasion for parents and grandparents to share their love of birds with young children, who will delight in the big, full-color illustrations of birds in action.

While its focus is on familiar backyard birds—blue jays, nuthatches, chickadees—it also examines certain species that are not as easily observed close to home.

• Bonus spread for September–December 2025
• Generous grids for adding appointments and reminders
• Includes major official world holidays.
• Opens to 12 inches x 24 inches