Tim Fitzharris / Sandwich Tern (Thalasseus sandvicensis) couple courting, North America

Tim Laman / Adult roseate spoonbill (Platalea ajaja) resting on one leg with head tucked under wing, Alafia Bank Bird Sanctuary, Sunken Island, Tampa Bay, Florida, USA.

Shattil & Rozinski / Hen / Northen harrier {Circus cyaneus} female landing, Colorado, USA

Winfried Wisniewski / Sandhill Crane (Grus canadensis) group on frozen lake, North America

Sumio Harada / Mountain Goat (Oreamnos americanus) mother and baby on steep, rocky slope, Rocky Mountains, North America

Konrad Wothe / Bobcat (Lynx rufus) balancing on rock, North America

Konrad Wothe / Bobcat (Lynx rufus) balancing on rock, North America

Sumio Harada / Mountain Goat (Oreamnos americanus) adult and kid descending steep mountain cliff, Rocky Mountains, North America

Tim Fitzharris / Marbled Godwit (Limosa fedoa) stretching its wings while standing on one leg, North America