Downy Woodpecker Dynamics

One of the interesting birds we see here in Michigan is the downy woodpecker. We have discussed before how woodpeckers avoid brain damage while hammering out insects embedded in trees. Watching downy woodpecker dynamics as they pound hundreds of times per minute with a force 30 times their body weight, you would expect them to have concussions. But the design of the woodpecker’s head and brain prevents brain damage.

Behavioral psychologist Nicholas Antonson at Brown University, with the help of colleagues, captured eight downy woodpeckers and examined the muscular and vascular systems that enable their unique behavior. The researchers found that these woodpeckers exhale with each strike, and their muscular system is coordinated with this breath control, resulting in consistent hammering.

Downy woodpecker dynamics require a complex muscular system, as neck muscles activate to pull the head back even before other muscles complete the forward motion. A hip muscle controls the power of the strike, while tail muscles brace the bird just before impact.

The muscles and breathing systems work at a rate of 13 times per second, with a 40-millisecond inhale period between each strike. This coordination of muscles and breath allows the woodpecker to find food, control insects, and communicate territorial claims to other woodpeckers. It also reflects God’s creative design of the systems in living things.

— John N. Clayton © 2026

Reference: “Woodpecker hammering is a full-body affair” by Anna Gibbs in Science News, January 2026, page 21