Study suggests that pigeons can recognize words. Pigeons also known as “rats with wings” just might be literate.
“Although their brains are only the size of a thimble, pigeons apparently have similar levels of intelligence as those found in toddlers. Earlier studies have shown they can tell the difference between live video images of themselves and previously recorded images. This ability is higher than the average human three-year-old.”
According to a study published in the Proceedings of the National Academy of Sciences last September, pigeons could distinguish real words from non-words by visually processing the letter combinations involved. The birds didn’t understand the meanings of any words, but they were able to distinguish words from non words.