Pigeons

Such an underrated bird and often called awful things like 'flying rats' or 'vermin'.

 

Pigeons have remarkable memory and recognition skills in various studies. They can differentiate between human faces, a trait that is relatively rare in the animal kingdom. This ability is not just about identifying a person but understanding the significance of that person in the pigeon’s life, whether they are a source of food, a threat, or a companion.