Birds react to close conspecific songs and ignore distant degraded ones

Evidence

When a bird listens to another individual of the same species, singing or produces an immediate reaction of alert if the signal is close, or if the signal is distant it can be ignored. The signal changes characteristics for effects of amplitude variation and environmental degradation according to distance. — Almo Farina, Soundscape Ecology, 613

Categorization

• XREF: connects to: Forest-dwelling birds can decode degraded songs down to a minimal core code — Almo Farina, Soundscape Ecology: Principles,…, 650; Birds convert sound degradation directly into graded defensive behaviors — Almo Farina, Soundscape Ecology: Principles,…, 647; Many vocal animals range the distance of competitors using degraded signal cues — Almo Farina, Soundscape Ecology: Principles,…, 801

Broader Connections

• Many vocal animals range the distance of competitors using degraded signal cues #expands (0.85) — Almo Farina, Soundscape Ecology, 801
• Birds convert sound degradation directly into graded defensive behaviors #complicates (0.75) — Almo Farina, Soundscape Ecology, 647
• Forest-dwelling birds can decode degraded songs down to a minimal core code #expands (0.72) — Almo Farina, Soundscape Ecology, 650