The call of the Northern cardinal (Cardinalis cardinalis) is often given when predators approach the nest, in order to give warning to the female and nestlings. In some cases it will also utter a series of chipping notes. The frequency and volume of these notes increases as the threat becomes greater. This chipping noise is also used by a Cardinal pair to locate each other, especially during dusk hours when visibility wanes. Filmed in Huntsville, Texas, United States.
J Labrador
CC BY 2.0
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