Steven David Miller / Rainbow lorikeet (Trichoglossus moluccanus) on a branch, Cania Gorge National Park, Queensland, Australia. September.

Bence Mate / Collared aracari (Pteroglossus torquatus) squabbling with Montezuma oropendola (Psarocolius montezuma) Costa Rica.

Bence Mate / Collared aracari (Pteroglossus torquatus) two perched, possibly courtship feeding, Costa Rica.

Donald M. Jones / Red-breasted Nuthatch (Sitta canadensis) chick in nest cavity, western Montana

Donald M. Jones / Red-breasted Nuthatch (Sitta canadensis), western Montana

Laurent Geslin / Red breasted merganser (Mergus serrator) male on Lake Geneva, near Geneva, Switzerland

Laurent Geslin / Red breasted merganser (Mergus serrator) male grooming, on Lake Geneva, near Geneva, Switzerland

Grzegorz Lesniewski / Red-breasted Flycatcher (Ficedula parva) perched. Bieszczady National Park, the Carpathians, Poland, June.

Donald M. Jones / Red-breasted Nuthatch (Sitta canadensis), North America

Donald M. Jones / Red-breasted Nuthatch (Sitta canadensis) perching on pine cones, North America

Marie Read / Rose-breasted grosbeak (Pheucticus ludovicianus), male perched in flowering Eastern redbud tree, New York, USA, May

Markus Varesvuo / Red-breasted Flycatcher (Ficedula parva) male perched on branch, Finland, May