GREENVILLE, N.C. (WNCT) — The northern cardinal is quite a notorious bird. With its bright red plumage, the cardinal moves about much of the United States. The northern cardinal can be found as far ...
BLOOMINGTON, Ind. -- The purity of birdsong is owed in large part to rapid, controlled changes in the shape of the birds' upper vocal tracts, according to a new study of Northern Cardinals by ...
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