# Aircraft sound exposure leads to song frequency decline and elevated aggression in wild chiffchaffs

> Research article (Journal of Animal Ecology, 2019) · cited 46× · AI/ML

**Wikidata**: [openalex:W2969277169](https://www.wikidata.org/wiki/openalex:W2969277169)  
**Source**: https://4ort.xyz/entity/aircraft-sound-exposure-leads-to-song-frequency-decline-and-elevated-aggression-in-wild-chiffchaffs