The following is a general guideline and is meant to help your lean how to interpret what your dog is trying to tell you. Keep in mind some dogs growl during play and this is considered to be an instinct showing dominance not aggression. It should still not be allowed. Cats use their meow to signal they need something but uses its body language to convey a message. Below is a general guideline to follow but we suggest you study your cat's behavior because each cat can be very different.
All birds communicate with a combination of body language and calls.
This can very widely from species to species. Below is a general guideline to follow. It is intended to be a starting point and if you watch your bird closely, they will teach you their own language. Rabbits and other small animals communicate mostly with body language. This information is intended to help you recognize this language so you can learn to understand what he or she is trying to tell you.