Tom Vezo / Acorn Woodpecker (Melanerpes formicivorus) female, Madera Canyon, Arizona

Tom Vezo / Acorn Woodpecker (Melanerpes formicivorus) female bringing food to nest cavity, Madera Canyon, Arizona

Rolf Nussbaumer / Acorn woodpecker {Melanerpes formicovus} Male, Madera Canyon, Arizona, USA.

Mary McDonald / Broad billed hummingbird (Cynanthus latirostris) AZ, USA Madera Canyon, Arizona

Mary McDonald / Mourning dove (Zenaida macroura) drinking at watering hole, Madera Canyon, Arizona, USA, April.

Mary McDonald / Northern phainopepla (Phainopepla nitens) female in tree, Madera Canyon, USA. April.

Mary McDonald / Pyrrhuloxia (Cardinalis sinuatus) at feeding station near pond, Madera Canyon, Arizona, USA, April.

Mary McDonald / Pyrrhuloxia (Cardinalis sinuatus) in tree near pond, Madera Canyon, Arizona, USA. April.

Mary McDonald / Broad-billed hummingbird (Cynanthus latirostris) male, in flight, at feeder, Madera Canyon, Southern Arizona, USA. May.

Mary McDonald / Broad-tailed hummingbird (Selasphorus platycercus) male drinking sugar water in flight, Madera Canyon, Southern Arizona, USA, May.

Mary McDonald / House finch (Carpodacus mexicanus) in tree, at pond, Madera Canyon, Arizona, USA, April.

Mary McDonald / House finch (Carpodacus mexicanus) at pond, Madera Canyon, Arizona, USA, April.