The Wingspan rulebooks are available for download.
You will also be able to watch a full rules video by Watch It Played.
If you have rule questions, please post them in the comments on this page, create a thread on BoardGameGeek, or ask them in the Wingspan Facebook group. A comprehensive list of minor typos is maintained here, and the files for the affected cards are here. The official Stonemaier Games response and solution to those issues is posted here.