@peter jeffrey cobb,
When it comes to flocks of black birds. They are very social. Have you noticed how the spacing between the sounds they make are part of their communication?
Have you noticed how they communicate with other species like seagulls?
What are "they"? If you define what they are, then perhaps I can answer the question.
No Pete, I never did notice, that the spaces between Seagull sounds are part of their communication, but then I do believe that all audible languages have space intervals in between the audible sounds. This is necessary for a multitude of reasons, one being that the sound is produced by air being exhaled and once the exhale is done, more needs to be inhaled, creating a space. And naturally, the spaces in a code, are part of the code itself, as in dash dot dash, or even this written language as well.
Happy New Year Pete...........................