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.

Tim Laman / Golden-fronted bowerbird (Amblyornis flavifrons) male, at bower collecting fruits and twigs as part of courtship display, Foja Mountains, West Papua.

Tim Laman / Golden-fronted bowerbird (Amblyornis flavifrons) male, bringing a new fruit to add to the decorations at his bower, Foja Mountains, West Papua.

Tim Laman / Berlepschi's parotia bird of paradise (Parotia berlepschi) male, perched on perch at his display court, Foja Mountains, West Papua.

Tim Laman / Red-breasted pygmy-parrots (Micropsitta bruijnii) pair excavating possible nest cavity in a dead tree trunk, Foja Mountains, West Papua.

Tim Laman / Golden-fronted bowerbird (Amblyornis flavifrons) male at bower, holding a blue berry in its beak used in display, Foja Mountains, West Papua.

Tim Laman / Black sicklebill bird of paradise (Epimachus fastuosus) male, at his display perch, Foja Mountains, West Papua.

Tim Laman / Black sicklebill bird of paradise (Epimachus fastuosus) male, at his display perch mid-display with plumes raised over his head, Foja Mountains, West Papua.

Tim Laman / Black sicklebill bird of paradise (Epimachus fastuosus) male, at his display perch, Foja Mountains, West Papua.

Tim Laman / Black sicklebill bird of paradise (Epimachus fastuosus) male, at his display perch mid-display with plumes raised over his head, Foja Mountains, West Papua.

Tim Laman / Berlepschi's parotia bird of paradise (Parotia berlepschi) male, perched on branch, Foja Mountains, West Papua.

Tim Laman / Berlepschi's parotia bird of paradise (Parotia berlepschi) male, perched on branch calling, Foja Mountains, West Papua.