Haines is Yellowstone’s lone biologist dedicated to birds, a position he was hired to fill after wolf biologist Doug Smith retired in 2022. Smith had volunteered to keep the bird program alive ...

Haines is Yellowstone’s lone biologist dedicated to birds, a position he was hired to fill after wolf biologist Doug Smith retired in 2022. Smith had volunteered to keep the bird program alive ...

Now Yellowstone’s Iconic Birds Face ‘Collapse.' An invasive fish set off a domino effect that has already affected bears and elk. Now it threatens trumpeter swans and other birds.

Yellowstone's diverse population of feathered creatures have captured the interest of scientist David Haines who is attempting to understand ecological and environmental changes in the park.