A Look At Unconventional Bird Calls
Pitch, and bird song identification – Sibley Guides
Our Review: Best iPhone Apps for Learning Bird Songs | All About Birds All About Birds
Birds Sounds & Guess The Bird APK for Android Download
Shazam for Birds: Three Apps That Recognize Bird Calls
World's loudest bird flirts by screaming in your face | NOVA | PBS
Bird Songs: 250 North American Birds in Song: Beletsky, Les: 9780760363263: Amazon.com: Books
You'll Never Guess Who: Strange Recordings From the Library of Animal Sounds | WIRED
98% of People Can't Guess These 50 Bird Species From Just One Image. Can You? | Zoo
Spanish Birds and Sounds by Faisal Akhtar
The best birdsong apps - BirdWatching
The best birdsong apps - BirdWatching
Birds aren't all singing the same song. They have dialects, too | CNN
Guess the Bird Sound - North American Bird Calls - YouTube
Bird Songs: 250 North American Birds in Song: Beletsky, Les: 9780760363263: Amazon.com: Books
Guess the Bird | British Bird Calls | Multiple Choice Quiz - YouTube
Larkwire Learn Birds
Bird Songs: 250 North American Birds in Song: Beletsky, Les: 9780760363263: Amazon.com: Books
Shazam for birds: Merlin Bird ID app can identify a bird from its song | CBC Radio
Ten Backyard Bird Songs – Nature in Novato
98% of People Can't Guess These 50 Bird Species From Just One Image. Can You? | Zoo
The best birdsong apps - BirdWatching
Guess the Bird Sound - North American Bird Calls - YouTube
The Top 10 Bird Songs in Texas|| TPW magazine|August/September 2015
Quiz: Can you identify these UK birds from their songs? | New Scientist
