I have photographed a few Ladder-backed Woodpeckers (Picoides scalaris) in south Texas, including male and females.
Ladder-backed Woodpecker (male), Santa Ana National Wildlife Refuge, Weslaco, Texas, USA, December 29, 2008
Ladder-backed Woodpecker (male), Santa Ana National Wildlife Refuge, Weslaco, Texas, USA, December 29, 2008
Ladder-backed Woodpecker (male), Santa Ana National Wildlife Refuge, Weslaco, Texas, USA, December 29, 2008
Ladder-backed Woodpecker (female), Santa Ana National Wildlife Refuge, Weslaco, Texas, USA, December 29, 2008
Ladder-backed Woodpecker (female), Santa Ana National Wildlife Refuge, Weslaco, Texas, USA, December 29, 2008