Springtime Now Arrives Earlier for Birds


A trove of scientific notes from the early 1900s suggests a warming climate is driving birds to migrate earlier to New York’s Mohonk Preserve.

Listen to the podcast at Scientific American’s 60-Second Science.

Records of bird migration dates starting in the 1930s show that migratory species like the redwing blackbird are arriving earlier and earlier in the spring. (Credit: Andrea Westmoreland via Wikimedia Commons)