Jack Dykinga / Flowering Agave (Agave palmeri) plants growing in grassland, Sands Ranch Conservation Area, with the Santa Rita Mountains in the distance at sunset, Pima Country, Arizona, USA

Tom Vezo / Hermit Thrush (Catharus guttatus) adult perching on rock, Santa Rita Mountains, Arizona

Jack Dykinga / Santa Rita prickly pear (Opuntia santarita) cactus flower with new growth spines on pad. Santa Catalina mountains foothills, Upper Sonnoran Desert, Arizona, USA. May.

Tim Fitzharris / Chamisa (Atriplex canescens) bushes in shrubland, Santa Rita Mountains, Arizona

Tom Vezo / Pyrrhuloxia (Cardinalis sinuatus), Santa Rita Mountains, Arizona

Tom Vezo / Pyrrhuloxia (Cardinalis sinuatus), Santa Rita Mountains, Arizona

Tom Vezo / Hooded Oriole (Icterus cucullatus) male, Santa Rita Mountains, Arizona

Tom Vezo / Hooded Oriole (Icterus cucullatus) female, Santa Rita Mountains, Arizona

Tom Vezo / Desert Cottontail (Sylvilagus audubonii), Santa Rita Mountains, Arizona

Tom Vezo / Desert Cottontail (Sylvilagus audubonii) at waterhole, Santa Rita Mountains, Arizona

Tom Vezo / Curve-billed Thrasher (Toxostoma curvirostre), Santa Rita Mountains, Arizona

Tom Vezo / Brewer's Sparrow (Spizella breweri) pair near water, Santa Rita Mountains, Arizona