phys_org Do birds have accents? The fascinating regional differences in birdsong mforghan April 30, 2026 Birds sing the most about an hour before dawn, when the air is at its stillest. Theoretically, this enables sounds to travel farther, making song up to 20 times more effective than if sung at midday. Post navigation Previous: Tokamak regime sustains stable fusion plasma for one minute while easing heat loadsNext: Pet cats that roam outdoors can carry similar disease risk as feral cats Related Stories phys_org Researchers develop highly efficient, durable catalyst for chlor-alkali electrolysis mforghan April 30, 2026 phys_org New ‘Roadmap’ highlights surface acoustic wave technologies mforghan April 30, 2026 phys_org Defect engineering lifts chalcopyrite thermoelectrics to record performance mforghan April 30, 2026