Downy Woodpecker vs Hairy Woodpecker

Key differences

Where you will find each

Both species live year-round across most of the wooded United States and Canada, so in much of the continent either one could land on the same tree. The downy is the more adaptable bird: it thrives in small woodlots, parks, orchards, willow thickets and suburbs with a few shade trees, and it even forages on weed stalks in old fields, but it avoids the desert Southwest. The hairy needs bigger trees and more forest, and it reaches much farther south, through mountain pine forests in Mexico and Central America to western Panama.

Why they look so alike

Despite their near-identical pattern, the two are not each other's closest relatives. Yale ornithologist Richard Prum proposed that the downy evolved to resemble the larger, more dominant hairy, a kind of mimicry. A 2018 Cornell Lab study of Project FeederWatch reports found that hairies displaced downies in 96 percent of 56 encounters at feeders, while downies often won against other birds of similar or larger size, and the authors suggested the downy's borrowed look helps it intimidate those birds. The idea is still debated.

Tricky birds and how to handle them

Young birds and regional forms cause most mistakes. Juvenile male downies wear a red cap in summer, so where the red sits is not a safe clue in that season. Western hairies show less white spotting on the wings, and some hairies are smudgy brown rather than white below. Size is hard to judge on a lone bird, so work through several features in order: the bill against the head first, then the outer tail feathers, then the voice.

By the numbers

The traits the daily bird game compares for each.