Dryobates scalaris eremicus: San Fernando woodpecker 86 Habits 86 Dryobates nuttalli: Nuttall’s woodpecker 87 Habits 87 Distribution 91 Dryobates arizonae arizonae: Arizona woodpecker 91 Habits 91 Distribution 96 Dryobates albolarvatus albolarvatus: Northern white-headed woodpecker 97 Habits 97 Distribution 104 Dryobates albolarvatus gravirostris: Southern white-headed woodpecker 105 Habits 105 Picoïdes arcticus: Arctic three-toed woodpecker 106 Habits 106 Distribution 115 Picoïdes tridactylus bacatus: American three-toed woodpecker 116 Habits 116 Distribution 121 Picoïdes tridactylus fasciatus: Alaska three-toed woodpecker 122 Habits 122 Picoïdes tridactylus dorsalis: Alpine three-toed woodpecker 124 Habits 124 Sphyrapicus varius varius: Yellow-bellied sapsucker 126 Habits 126 Distribution 139 Sphyrapicus varius nuchalis: Red-naped sapsucker 141 Habits 141 Sphyrapicus varius daggetti: Southern red-breasted sapsucker 146 Habits 146 Sphyrapicus varius ruber: Northern red-breasted sapsucker 151 Habits 151 Sphyrapicus thyroideus thyroideus: Williamson’s sapsucker 154 Habits 154 Distribution 160 Sphyrapicus thyroideus nataliae: Natalie’s sapsucker 162 Habits 162 Ceophloeus pileatus pileatus: Southern pileated woodpecker 164 Habits 164 Distribution 170