Animals conversing

Most people assume when they observe some animals converse, (birds, dogs, monkeys etc.) that the way they produce their sounds,  when audible to human ears, is exactly as what is heard. That is the tones and pitches.  Is this truly the necessary way communication progresses?

It is commonly observed, for example, when  some people are hunting or otherwise dealing with animals, they assume they must exactly reproduce the sound they hear to get its attention. This includes tones, etc.  However, when a beginner in imitating animal is not able to exactly reproduce the sound tone, this does not mean they are ignored by the animal!

When one takes time to study what seems to count in like-species conversing to one another, it can be found that reproducing the tone of the sound may not be crucial. What seems to count more is cadence. More animals respond to the sequencing of the sound than the tone level. They rely more on the timing of the sound to identify the communication. It appears that the timing of sound production is more central for distinguishing. One can detect  what counts is the order of the sequence. Is it just one, solo sound? Is it one sound with a long pause between the next produced sound? Is it a quick series, or a short series with one or more pauses that they identify? In other words, it is the sequencing of sounds that they listen for rather than just the tone. The tone may be secondary to identification. The tone can be off key or not replicated precisely but they will nevertheless respond to the cadence that they are acquainted. And in fact, if the sequence is not the same as their species that they are acquainted for communicating specific information, then they tend to ignore or not respond to the sound!