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Where Are Birds’ Ears? They Lack External Ears, But There Are Hidden Holes

Fancy a game of pin the ears on a bird? Alright then, big shot, where are they? Birds use sound as one of their key senses ...
insider.si.edu

Bird senses how and what birds see, hear, smell, taste and feel Graham R. Martin

Intro -- Half Title -- Title Page -- Copyright Page -- Dedication -- Contents -- Preface -- A note on bird taxonomy and bird names -- Acknowledgements -- 1. Senses ...