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英国で最も一般的な鳥と鳥の鳴き声の識別
20 COMMON BIRDS and THEIR SONGS for BEGINNERS
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鳥 - 名前と音 - 英語で鳥の種類を学ぶ
Australia's Most Common Birds - Part 1
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Wisconsin's 25 Most Common Backyard Birds
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COMMON GARDEN BIRDSの見分け方 - 曲も含めて
20 Most Common Birds in Ontario, Canada
25 の一般的な裏庭の鳥の鳴き声を学ぶ (米国中部および東部)
Learn to Identify 15 Common Backyard Birds of the Midwestern United States