Eladio Fernandez / Fernandina's flicker (Colaptes fernandinae) at hole in tree, Cuba. Vulnerable species.

Eladio Fernandez / Fernandina's flicker (Colaptes fernandinae), Cuba, endemic species

Karine Aigner / Fernandina's flicker (Colaptes fernandinae) peering out of nest hole, Cuba

Murray Cooper / Spot-breasted Woodpecker (Colaptes punctigula) at nest cavity, South America

Michael Quinton / Northern Flicker (Colaptes auratus) carrying fecal sac from nest cavity in forest, Alaska

Tim Zurowski/ BIA / Northern Flicker (Colaptes auratus) male, British Columbia, Canada

Donald M. Jones / Gilded Flicker (Colaptes chrysoides), southern Arizona

Gabriel Rojo / Green-barred woodpecker (Colaptes melanochloros) female on snag, La Pampa, Argentina

Alan Murphy / Northern Flicker (Colaptes auratus) female at nest cavity with chicks, British Columbia, Canada

Alan Murphy / Northern Flicker (Colaptes auratus) male at nest cavity with chicks, British Columbia, Canada

Michael Quinton / Northern Flicker (Colaptes auratus) at nest cavity with chicks, Alaska

Michael Quinton / Northern Flicker (Colaptes auratus) parent at nest cavity with chick, Alaska