Study Reveals Crows' Ability to Count Up to Four

Research indicates carrion crows can vocally tally numbers, similar to human toddlers' early counting methods.

Scientists trained three carrion crows to produce specific numbers of vocalizations in response to visual and auditory cues.
The birds demonstrated a high accuracy rate for lower numbers, with decreasing precision as the numbers increased.
Researchers observed that crows took longer to respond to higher numbers, suggesting mental planning.
The study adds evidence that certain bird species can communicate numerical information.
Future research aims to explore how crows use this counting ability in the wild and its neurological basis.