Tomasz Cofta is one of the most experienced field ornithologists in Europe, having ringed almost one hundred thousand birds of more than two hundred species (mainly passerines) in Europe, Asia and Africa. Based in Gdańsk, Poland, he is a member of the Polish Avifaunistic Commission and an acclaimed bird illustrator and author. He has published more than a hundred papers on bird identification, featuring close to two thousand of his own artworks, and has prepared thousands of other meticulously detailed illustrations of birds and other wildlife that are featured in more than sixty books, including The World's Rarest Birds (Princeton WILDGuides).