Bill Walker: Portrait of the artist
Bill Walker: Northern Flicker
Bill Walker: Burrowing Owl
Bill Walker: Western Screech-Owl
Bill Walker: Pyrrhuloxia (Cardinalis sinuatus)
Bill Walker: Steller's Jay
Bill Walker: Cedar Waxwing
Bill Walker: Anna's Hummingbird
Bill Walker: American Dipper
Bill Walker: Say's Phoebe