Known for their beautiful singing duets, plain wrens of Costa Rica perform precise phrase-by-phrase modifications to the duration between two consecutive phrases, achieving careful coordination as their songs unfold. A new study shows that these songbirds achieve precise coordination by adjusting the period between two consecutive phrases (inter-phrase intervals), depending on whether their song is answered, the phrase type used in the duet and the position of the inter-phrase interval within the duet.
from News -- ScienceDaily http://ift.tt/1Ajrwa4 via Karis World
from News -- ScienceDaily http://ift.tt/1Ajrwa4 via Karis World
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