Exercises included: Common flicker : painting on pre-wet paper -- Cardinal (male) : painting on soaked paper -- Green heron : painting on dry paper -- Ring-billed gull : painting a loose background -- Baltimore oriole : underpainting with yellow -- White-throated sparrow : painting feather patterns -- Barn owl : painting intricate feather patterns -- Ruby-throated hummingbird : painting an open wing -- Red-tailed hawk : painting a frontal view -- Wood thrush : traditional perching pose -- Eastern bluebird : unusual perching pose -- Cardinal (female) : nesting -- Pigeons : pecking -- Red-winged blackbird : full flight -- Common yellowthroat : lifting off -- Turkey vultures : flocks -- Mourning dove : ruffled feathers -- Spotted sandpiper : realistic background-middle distance -- Cactus wren : realistic background-close-up -- American redstart : representational background -- Blue hay : imagined background -- Goldfinch : two different directions -- American crow : realistic bird and background -- American crow : imagined bird and background.