Millions of Birds Caught Fleeing Overnight — Radar Show's What Was Really Happening

Millions of Birds Caught Fleeing Overnight — Radar Show's What Was Really Happening Weather radar over Wisconsin captured 103 million birds crossing in a single night on September 9th, and across the country on September 26th that number reached 550 million in one night. The video explains how NEXRAD's dual-polarization upgrade, which sends two radar pulses instead of one, finally let forecasters distinguish birds from rain, and how a project called BirdCast now uses two decades of radar data to forecast migration hours in advance. A 2014 study of golden-winged warblers in Tennessee, each weighing less than two nickels, found they likely fled an approaching tornado system using infrasound, sound too low for humans to hear that travels hundreds of miles. That real finding is carefully separated here from the broader claim that birds predict earthquakes, which reviewed evidence does not support. The video also covers how a single Chicago building killed close to 1,000 birds in one October 2023 night before a window film reduced strikes there by about 95 percent.