The relic now values at more than £25,000 and the man plans to sell it next month.
The bird head had been naturally mummified by the arid climate of Chihuahua and its plume still retained colour.
So far, archaeologists have verified some 7,000 features of lost city discovered via revolutionary lidar tech.
Bulgarian researchers have found a well-preserved ceramic tile which features inscriptions of a set of symbols known as the Vinča signs.
The Amasra Museum Directorate said Roman carvings were found of the artefacts which may have been part of a temple building.
The bones belong to at least 20 people who may have been Tehuelche, a group of indigenous nomadic hunter-gatherers who settled in Patagonia 12,000 years ago.
The two Late Pleistocene boys, roughly estimated to be around 10 and 12 years old, were found to have physical abnormalities.
Children had far more responsibilities and less supervision than they do today, new findings suggest.
A 13,500-year-old carved bison bone dredged from the North Sea is the oldest piece of Dutch art ever found.
The carvings were discovered at an archaeological site known as the Camel Site and have been dated back to the first century BC or AD.
A recently published journal seems to suggest prehistoric Scandinavians were prone to violence against men and women.
Wine has been known as a magical substance since its appearances in Homeric tales, with the unique power to bring euphoria and an altered states of consciousness.
Palaeontologists believe the ancient trackway represents footprints of "adult, juvenile and infant mammoths".
The ancient chamber goes three feet below the surface and is approximately six feet long.
A 70ft-long skeleton replica of the Diplodocus carnegii species, which lived about 145-156 million years ago, has been unveiled at the Dorset County Museum in Dorchester.
Sam Bellamy called himself the the 'Robin Hood of the Sea' and he captured more than 50 vessels, amassing a fortune worth around $120 million in today's money.
Researchers have been debating the origins of the mummy, which features a face contorted in agony and believe the person may have been poisoned or buried alive.
Monument dating back to Neolithic Period discovered by a team of archaeologists within miles of Windsor Castle. It is hoped the find provides insights into our ancestors' lives.
The ancient mosaic was discovered under a 1,500-year-old building that was likely used as a place for gathering and socialising.
"The Jesus we've inherited from centuries of Christian art is not accurate, but it is a powerful brand."