Have you ever wondered whether you are looking at a male or female swan? I had often until I learned that the male’s black protuberance at the base of the bill swells during the breeding season. Very recently, I learned that the fleshy black knob has a name. So now rather than calling it a knob, nobble, thingamabob, or that black protuberance above the bill, I can say blackberry, and you can too. That really is an often used term in Europe, their native home. The blackberry is also unique to Mute Swans; no other species of swans has this feature.
Published by Kim Smith
Documentary filmmaker, photographer, landscape designer, author, and illustrator. Currently creating films about the Monarch Butterfly, Gloucester's Feast of St. Joseph, Saint Peter's Fiesta, and Piping Plovers. Visit my websites for more information about film and design projects at kimsmithdesigns.com and monarchbutterflyfilm.com. Author/illustrator "Oh Garden of Fresh Possibilities! Notes from a Gloucester Garden" View all posts by Kim Smith