I’m reading a bird forum where a heated debate has broken out over a photo, supposedly the first-ever sighting of a red-winged blackbird in central Brazil, thousands of miles outside where the species normally lives. Excited birders are treating it as a genuine discovery.

Except the bird in the photo isn’t a red-winged blackbird at all. It’s actually a completely different, common local species called an epaulet oriole. Someone had asked an AI tool to "make the picture look better," and the AI quietly redrew the bird’s wing patches into something that matched a species from an entirely different continent.

So I looked into it. Here’s what I found.

AI Is Quietly Inventing New Bird Species — And Some Ornithologists Almost Fell For It

AI-ALTERED — The bird is real. The markings that made it look like a rare species were added by AI.

Millions of people use citizen science platforms like iNaturalist, eBird, and the Macaulay Library to log real wildlife sightings, and scientists lean on that public data to track where species live, how they're moving as the climate shifts, and what's changing in the wild. A new study published in the journal Nature Ecology & Evolution, led by ecologist Dr. Alexander Lees of Manchester Metropolitan University, warns that AI tools are quietly poisoning that data.

The most striking case involved a photo submitted as a possible first sighting of a red-winged blackbird in central Brazil, a species that normally lives thousands of miles away in North America. The bird in the photo was actually an epaulet oriole, a species common to the region. The photographer had simply asked an AI editing tool to sharpen or improve the image, and the AI added red wing patches that weren't there, quietly reconstructing the bird to resemble the wrong species entirely.

Lees and his co-authors, including Tony Iwane of iNaturalist, also demonstrated how easily a species could be invented from nothing at all. Using Google's Gemini, the researchers generated a convincing but entirely fictional image resembling a willow tit, close enough that Lees said it was "almost convincing enough to fool some 'ornithologists.'" The AI-fabricated bird had subtly deformed feet and beak details, but only on close inspection.

The scale of the problem is still coming into focus. Of the more than 610 million images on iNaturalist, only about 1,400 have been flagged for AI use so far, though researchers say that number likely undercounts the real total, since the sneakiest cases are edits to real photos rather than fully invented ones. As Lees put it, "nobody is falling for a toucan sighting in Siberia," but subtle "beautifying" edits are far harder to catch and just as capable of corrupting a scientific record.