Victor Emanuel是全美最知名的赏鸟人之一。他走访世界各地，已经看过超过六千种鸟类。他还成立了世界最大的专业赏鸟旅行社─凡特生态旅游（ＶＥＮＴ, Victor Emanuel Nature Tour）。Emanuel 得做许多赏鸟的最高荣耀，包括美国观鸟协会颁发的Roger Tory Peterson Award和康奈尔鸟类学实验室(Cornell Lab of Ornithology) 颁发的作者A. Allen 奖。他也是第一个创办青年赏鸟营的人，此举被视为他最伟大的成就之一。
 
Emanuel在《永远不够的鸟鸣声》中，回想叙述他这辈子的赏鸟冒险之旅，从他小时候看见北美红雀（愤怒鸟的原形）那一刻起，便点燃了他对赏鸟的热情，到他唯一一次到亚洲旅游时，看见了亚洲全部八种鹤鸟，当时心里兴奋激动的感受。他讲述了教导他鸟类、自然与保护之良师益友的精采故事，以及他亲近的朋友圈，包括Ted Parker、Peter Matthiessen、George Plimpton、Roger Tory Peterson等人，这些人和他一起到世界各地旅游赏鸟。Emanuel 写到自己在加尔维斯敦岛上看见已经被认为灭绝的爱斯基摩杓鹬，写到自己一直都是圣诞节鸟类调查(Audubon Christmas Bird Count)的纪录保持人，写到自己试图在墨西哥西北部观看帝啄木鸟的过程，以及在遥远的阿留申群岛的阿图岛赏鸟的轻形。
 
多年来，Emanuel自己也成为一名鸟类老师，教导上百名年轻人赏鸟的乐趣。 Emanuel说：“鸟改变了我的生命。”他的故事让我们清楚地看到和自然世界的紧密联系可以改变每个人的生命。
 
本书好评
"Birding with Victor Emanuel will change the way you see the natural world. It’s an experience everyone should have." (Laura Bush)

"Victor Emanuel is a remarkable man who found his mentors in birding and went on to become a leader in that community for the past fifty years. In One More Warbler, Victor shares his wide-ranging adventures across the globe, including the story of his enormously influential ecotourism company, and the reasons why he become a mentor himself to whole generations of young ornithologists. It’s a fascinating read." (Kenn Kaufman, author of Kingbird Highway)

"Long before anyone used the word ‘ecotourism,’ Victor Emanuel had devoted his life to the mission of sharing with others his passion for birds and nature. His literary sophistication, boundless curiosity, commitment to mentoring, and raw, childlike exuberance have earned him friendships with writers, filmmakers, politicians, and educators the world over. This book is classic Victor: a tapestry of anecdotes, adventures, philosophical musings, and tributes to people, all woven together by glowing words of admiration for the rich diversity of birds that grace our lives, and define his." (John Fitzpatrick, Director, Cornell Lab of Ornithology)
 
关于作者
Victor Emanuel是凡特生态旅游（ＶＥＮＴ, Victor Emanuel Nature Tour）的创办人。 他的足迹遍布世界各地，尤其是美国西南部、墨西哥、巴拿马和秘鲁。1957年时，他创办了（且还继续举办着）破纪录的自由港圣诞节鸟类调查活动。他也是德州鸟类学会会长。

S. Kirk Walsh是作家、编辑和教师，《纽约时报书评》、《洛杉矶书评》、《波士顿环球报》及许多报章和线上媒体都有刊登过他的文章。