Ladder-backed Woodpecker

Subspecies (9)

• Dryobates scalaris cactophilus

  arid southwestern USA to northeastern Baja California and central Mexico

• Dryobates scalaris eremicus

  northern Baja California

• Dryobates scalaris graysoni

  Tres Marías Islands (off western Mexico)

• Dryobates scalaris leucoptilurus

  Belize, Guatemala, and El Salvador to northeastern Nicaragua

• Dryobates scalaris lucasanus

  southern Baja California

• Dryobates scalaris parvus

  northern Yucatan Peninsula, including Isla Holbox and Cozumel

• Dryobates scalaris scalaris

  southern Mexico (Veracruz and Chiapas)

• Dryobates scalaris sinaloensis

  coastal western Mexico (southern Sonora to Guerrero, southwestern Puebla, and western Oaxaca)

• Dryobates scalaris soulei

  Cerralvo Island, southern Baja California