What a great topic I have this book it’s called “Animal Speaks And I recommend that you try getting this book by Ted Andrews. There is a meditation that I used once.
Ted Andrew’s Animal Speaks Meditation
I am working with the snakes 
I had a pet snake once and the thing about them is that sometimes before holding them you might feel scared or timid because you never know if they’ll bite. They are very sacred in many cultures. I have come to realize that they are easy going in nature but not all snakes.Hecate has a couple of snakes around her! There are many hidden meanings to the snake!
I did find that I would overcome my fear after holding my pet snake. I’m wondering if this could’ve been my familiar? Having a snake helped me overcome fear.
My pet I had
Bermese Python
Also I am working with the crow right know
I like observing the birds in the sky they can always teach you about what is going on with the weather and since they are hunters & they look for a prey! They are sometimes around death! Which makes me think of rebirth. If one sees a bird in the sky after having lunch,it can mean that you have a good omen for a transformation, I think a different chapter in your journey!
Jeannie