Adrian Davies / Dog stinkhorn (Mutinus caninus) growing on forest floor, Surrey, England, UK. November.

Adrian Davies / Beech jellydisc fungus (Neobulgaria pura) growing on Beech log, Surrey, England, UK. October.

Adrian Davies / Cut-leaf banksia (Banksia praemorsa), Botanic garden, UK. November.

Jack Dykinga / Curve-billed thrasher (Toxostoma curvirostre) perched on Hanging chain cholla cactus (Cylindropuntia fulgida), Santa Catalina Mountain foothills, near Tucson, Arizona, USA. November.

Jack Dykinga / Black-throated sparrow (Amphispiza bilineata) jumping, Santa Catalina Mountains foothills, near Tucson, Arizona, USA. November.

Jack Dykinga / Black-throated sparrow (Amphispiza bilineata) taking flight from Hanging chain cholla cactus (Cylindropuntia fulgida), Santa Catalina Mountains foothills, near Tuscon, Arizona, USA. November.

Jack Dykinga / Black-throated sparrow (Amphispiza bilineata) flying above Hanging chain cholla cacti (Cylindropuntia fulgida), Santa Catalina Mountains foothills, near Tucson, Arizona, USA. November.

Jack Dykinga / Black-throated sparrow (Amphispiza bilineata) portrait, Santa Catalina Mountains foothills, near Tucson, Arizona, USA. November.

Jack Dykinga / Abert's towhee (Pipilo aberti) perched on Hanging chain cholla cactus skeleton (Cylindropuntia fulgida), Santa Catalina Mountain foothills, near Tucson, Arizona, USA. November.

Jack Dykinga / House finch (Haemorhous mexicanus) male, taking flight from Hanging chain cholla cactus skeleton (Cylindropuntia fulgida), Santa Catalina Mountain foothills, near Tucson, Arizona, USA. November.

Jack Dykinga / Black-throated sparrow (Amphispiza bilineata) perched on Hanging chain cholla cacti (Cylindropuntia fulgida), Santa Catalina Mountains foothills, near Tucson, Arizona, USA. November.

Jack Dykinga / Cactus wren (Campylorhynchus brunneicapillus) flying amongst Hanging chain cholla cacti (Cylindropuntia fulgida), Santa Catalina Mountains foothills, near Tucson, Arizona, USA. November.