Andres M. Dominguez / Hawfinch (Coccothraustes coccothraustes) perched on branch amongst Hawthorn (Crataegus sp) berries. Sierra de Grazalema Natural Park, Cadiz, Spain. February.

Loic Poidevin / Eurasian bullfinch (Pyrrhula pyrrhula) male on a branch feeding on Rowan (Sorbus aucuparia) berries, Leon, Spain, February.

Loic Poidevin / Eurasian bullfinch (Pyrrhula pyrrhula) male on a branch feeding on Rowan (Sorbus aucuparia) berries, Leon, Spain, February.

Marie Read / American Robin (Turdus migratorius), feeding on winterberry (Ilex) fruits in winter, New York, USA, December.

Alan Murphy/ BIA / Golden-fronted Woodpecker (Melanerpes aurifrons) female, Texas

Alan Murphy/ BIA / Clay-colored Thrush (Turdus grayi) feeding on berries, Texas

Kerstin Hinze / Black-bellied hamster (Cricetus cricetus) feeding on yew fruits (Taxus baccata), Vienna, Austria, October.

Markus Varesvuo / Pine Grosbeak male (Pinicola enucleator)and traffic light Oulu, Finland, December

Robert Thompson / Hawthorn berries (Crataegus monogyna) Brackagh Moss NNR, Portadown, Co. Armagh, Northern Ireland.

Alastair MacEwen / Timelapse of frost forming on Rose (Rosa) hips, controlled conditions, Somerset, England, UK.

Alan Murphy/ BIA / Orange-crowned Warbler (Oreothlypis celata) among red berries, Texas

Alan Murphy/ BIA / Eastern Phoebe (Sayornis phoebe) feeding on red berries, Texas