![A colorful illustration shows a phenology wheel—a scientific diagram that uses a series of concentric circles to show the alignment of sunlight, plant growth, and insect emergence. In this illustration, birds are flying chaotically around the wheel, showing their struggle to keep up with the advancement of spring.](https://media.audubon.org/web_phenology-a_vertical-web-copy.jpg?width=233&height=200&auto=webp&quality=10&fit=crop&disable=upscale&enable=upscale&blur=100)
A Matter of Timing: Can Birds Keep Up With Earlier and Earlier Springs?
April 13, 2022 —
The seasons are changing as the planet warms. Some migratory species may break under the strain—but others could surprise us.