Sally Blanchard's Parrots Made E-Z: Stuff you Need to Know about Companion Parrot Body Language.
This is a 25 page .pdf publication by Sally Blanchard about Understanding Companion Parrot Body Language.
(As with all of the Parrots Made E-Z publications, Play Part II will be sent to your e-mail as a .pdf by EYSY)
The publication covers many topics including:
communicating with color,
initiating play, and more.
I wrote the Parrots Made E-Z Series to help parrot caregivers understand the issues involving their parrots that seem to cause the most problems regarding the behavior and care of their birds. Each volume of this series is under $10, is fully illustrated by Sally and provides in-depth information about the topic.