Mark Moffett / Nymphalid Butterfly (Nymphalidae) feeding on a sunflower near Sonoita, Arizona

Mark Moffett / Pierid Butterfly (Phoebis sp) feeding on sunflower nectar, Sonoita, Arizona

Mark Moffett / Bumblebee (Bombus sp) feeding on sunflower nectar near Sonoita, Arizona

Mark Moffett / Bumblebee (Bombus sp) feeding on sunflower nectar near Sonoita, Arizona

Mark Moffett / Five-spotted Hawkmoth (Manduca quinquemaculata) feeding on flower nectar, Sonoita, Arizona

Mark Moffett / Bumblebee (Bombus sp) feeding on sunflower nectar near Sonoita, Arizona

Mark Moffett / Five-spotted Hawkmoth (Manduca quinquemaculata) feeding on flower nectar, Sonoita, Arizona

Mark Moffett / Five-spotted Hawkmoth (Manduca quinquemaculata) feeding on flower nectar, Sonoita, Arizona

Jack Dykinga / Sands Ranch Conservation Area grassland with Palmer's century plant (Agave palmeri). Sun setting over Santa Rita in background. Area provides landscape connectivity between Las Cienegas National C...

Jack Dykinga / Palmer's century plant (Agave palmeri) in grassland under stormy sky. During summer monsoon, rain falling on Santa Rita Mountains in distance. Sands Ranch Conservation Area, near Sonoita, Pima Cou...

Jack Dykinga / Details of wood grain structure of Arizona white oaks (Quercus arizonica). Stress from lack of water and pest infection can cause elaborate swirls and intricate patterns. Conelo Hills, near Sonoita Co...