Carol Walker / RF - Head portrait of black Andalusian mare and stallion meeting for the first time in Spain, Europe. (This image may be licensed either as rights managed or royalty free.)

Carol Walker / RF - Head portrait of grey Andalusian stallion running in pasture with windswept mane, Southern Spain. April. (This image may be licensed either as rights managed or royalty free.)

Carol Walker / RF - Head and mane of grey Andalusian stallion running in bullfighting arena, Southern Spain, Europe. (This image may be licensed either as rights managed or royalty free.)

Staffan Widstrand / RF- Eurasian Griffon vulture (Gyps fulvus) at wildlife watching and vulture feeding site, Pre-Pyrenees, Catalonia, Spain. (This image may be licensed either as rights managed or royalty free.)

Wild Wonders of Europe / Widstrand / RF- Aerial image of farmland bordering river, Salamanca Region, Castilla y Leon, Spain, May 2011. (This image may be licensed either as rights managed or royalty free.)

Wild Wonders of Europe / Widstrand / RF- Aerial image of Dehesa forest and ponds, Salamanca Region, Castilla y Leon, Spain, May 2011. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF- Common poppy (Papaver rhoeas) flowers, Menorca, Balearic Islands, Spain, Europe. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF- Opening Mallow-leaved bindweed (Convolvulus althaeoides) flower, Menorca, Balearic Islands, Spain, Europe. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF- Crown daisy flower (Glebionis coronarium) Menorca, Balearic Islands, Spain, Europe.

Edwin Giesbers / RF- Map lichen (Rhizocarpon geographicum) on rock, Menorca, Balearic Islands, Spain, Europe. (This image may be licensed either as rights managed or royalty free.)

Wild Wonders of Europe / Widstrand / RF- White storks (Ciconia ciconia) nesting on poles erected by the city of Caceres in Extremadura, Spain, to compensate for the removal of an old farmhouse supporting a colony of storks. (This image m...

Wild Wonders of Europe / Widstrand / RF- Griffon vultures (Gyps fulvus) feeding, Montejo de la Vega, Segovia, Castilla y Leon, Spain. March. (This image may be licensed either as rights managed or royalty free.)