title: Ecology: Birds sing at a higher pitch in urban noise.
authors.affiliation: Behavioural Biology, Institute of Biology Leiden, Leiden University, 2300 RA Leiden, The Netherlands. slabbekoorn@rulsfb.leidenuniv.nl
authors.forename: Hans
authors.initials: H
authors.lastname: Slabbekoorn
authors.forename: Margriet
authors.initials: M
authors.lastname: Peet
mesh_terms: D000162:Acoustics; D000222:Adaptation, Physiological; D000818:Animals; D002947:Cities; D017753:Ecosystem; D008297:Male; D009426:Netherlands; D009622:Noise; D010897:Pitch Discrimination; D012098:Reproduction; D020308:Songbirds / Q000502:physiology*; D014828:Vocalization, Animal / Q000502:physiology*