BIRD CALLS and SONGS
Recordings and sonagrams of the bird sounds of eastern North America and the UK
Tuesday, June 28
Juveniles II : Warblers
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Cetti's Warbler (June, Herts). Adult alarm calls and high-pitched fledgling calls. Your browser does not support the <audio> t...
Friday, December 31
Detecting Northern Saw-whet Owls by Ear
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Roosting Northern Saw-whet Owls are extremely difficult to find in migration or on wintering grounds even though they are quite common, and ...
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