CALHOUN COUNTY, S.C. — In Calhoun County, the sound of purple martins chirping is an indication of springtime. Fifty years ago, the the St. Matthews Rotary Club built birdhouses for their homecoming ...
Presents the sounds of a colony of purple martins, field recorded in Gainesville, Fla., in 1982. Gives background information on the birds and explains the meaning of ...
People have long sought to attract purple martins, which are known for their aerial acrobatics, tolerance of humans and pleasant songs. Native Americans hung hollow gourds in trees or on poles to ...
Researchers conducted a global study of the factors that influence bird sounds, using more than 100,000 audio recordings from around the world. Birds make sounds to communicate, whether to find a ...
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