A Fascinating Medical Mystery: Prehistoric Bird Found Choked on 800 Stones
Unraveling the mysteries of the past is a thrilling endeavor for paleontologists, but a recent discovery has left experts scratching their heads. A prehistoric bird, Chromeornis funkyi, that lived and perished 120 million years ago has presented researchers with a perplexing medical enigma.
The bird was found with over 800 tiny pebbles lodged in its throat, a situation that likely led to its demise. But the question remains – why was this sparrow-sized bird swallowing stones in the first place?
This peculiar case sheds light on the diet, behavior, and physiology of ancient birds, as the mass of stones found in Chromeornis funkyi is unlike anything observed in modern avian species.
The Remarkable Discovery of Chromeornis funkyi
Discovered in a fossil formation known as a Lagerstätte, Chromeornis funkyi is an exceptional specimen that provides detailed insights into prehistoric avian life. The fossil preserves soft tissues such as skin outlines, feathers, eye pigment, and even muscle structure, in addition to the bird’s beak and bones.
Weighing around 33 grams, Chromeornis funkyi belonged to the extinct Longipterygidae family, characterized by small birds with unique dental features. Its closest relative is the genus Longipteryx.
The Stone Mystery Unveiled
Upon closer examination, paleontologists were puzzled by the large cluster of stones in the bird’s esophagus. The composition of these stones differed from the surrounding sediment, indicating that they were ingested while the bird was alive.
While some birds use stones, known as gastroliths, to aid digestion by grinding food in the gizzard, Chromeornis funkyi showed no evidence of possessing a gastric mill. The sheer volume and variety of stones found in the bird’s throat ruled out the possibility of them serving a digestive function.
Speculations suggest that the bird may have swallowed the stones due to illness, possibly to dislodge parasites or compensate for nutrient deficiencies. The attempt to regurgitate the stones in a single mass likely led to the fatal choking incident.
Insights into Extinction
Like many other species of the time, Chromeornis funkyi met its demise during the Cretaceous-Paleogene mass extinction 66 million years ago. This rare fossil provides valuable information on the vulnerabilities of ancient avian species, offering potential insights for modern conservation efforts.
By studying extinct birds like Chromeornis funkyi, researchers aim to unravel the mysteries of the past and apply these learnings to safeguard current avian populations.
The findings of this study have been published in Palaeontologica Electronica, marking a significant contribution to our understanding of prehistoric avian life.

