Assertion: northern cardinal | /r/CapableOf | sweep through more notes
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Source sentences:
text: The songbird syrinxSEE-rinksthe bird voice box, located at the branch point between the trachea and bronchi and containing vibrating tissues called labia, in songbirds capable of making two sounds at once via independent muscle control makes vocal gymnastics possible–for example the Northern Cardinal (Cardinalis cardinalis) is a able to sweep through more notes than are on a piano keyboard in just a tenth of a second.