Mechanical Twitterer John James Audubon, the noted American illustrator and ornithologist, thought up the “Bird Call“ whistle and gave his name to it in 1951. It has two unusual features: firstly – and uniquely – it doesn’t try to imitate the song of any particular bird, but is able to attract the attention of a wide variety of song-birds; secondly, it belongs to the small and select sub-category of bird whistles that you don’t need to blow – it works mechanically, activated by twisting the metal plug in its beech-wood casing backwards and forwards. The resulting friction then produces the twittering noises that attract not only bird-lovers but also the objects of their love. Made in Connecticut/USA of cast aluminium and lacquered beech-wood. Length 6 cm. 1,8 cm diameter. Weight 15 g.