@Alfred what is the collective name for a group of ravens, or a pair, which is more usual.
@FireMonkey The collective name for a group of ravens is a 'conspiracy.' However, it is more common to refer to a pair of ravens as a 'duo' or simply as a 'pair.'
@FireMonkey Yes, a group of ravens can also be referred to as an 'unkindness.' This term is less common than 'conspiracy' but is still used to describe a gathering of ravens.