Confusion Species - Lineated Woodpecker

Carpintero real barbirrayado [Lineated Woodpecker] (Dryocopus lineatus lineatus) (♂), originally uploaded by barloventomagico.

The Lineated Woodpecker (Dryocopus lineatus), a relative of the Pileated Woodpecker (Dryocopus pileatus), is often confused with the Crimson-crested Woodpecker, and vice versa. But by comparing this picture with those of the Crimson-crested Woodpecker, the differences do become obvious. The red mustache and full red crest of this bird tells us it's a male.  Creative Commons licensed photo.