When looking through the 825 "Bread" images at Acclaim Images.com this Avian Flu Warning was a favorite.
All of their pictures are hand picked, availiable in a number of formats, and you can even get custom prints and posters.

Description:
Avian Flu Warning
Stock photo of barnyard chicken feeding on bread scraps; free range chicken; avian flu danger!

Some related terms for more images:
poultry,  caution,  bird,  barnyard,  animal,  free range,  farmyard,  chickens,  hen,  beth conant,  warning,  farmyards,  avian flu,  birds,  beware,  hens,  pecking,  animals,  feeding,  barnyards,