# Vocal plasticity in mallards: multiple signal changes in noise and the evolution of the Lombard effect in birds

> Research article (Journal of Avian Biology, 2017) · cited 22× · AI/ML

**Wikidata**: [openalex:W2762755478](https://www.wikidata.org/wiki/openalex:W2762755478)  
**Source**: https://4ort.xyz/entity/vocal-plasticity-in-mallards-multiple-signal-changes-in-noise-and-the-evolution-of-the-lombard-effect-in-birds