Just wanted to clarify, it's the birds right side, not the right side as you look at her (I hope that makes sense and doesn't make it worse). Here are some good pictures, took me awhile to find them. Posts #15 and #17 here are exactly what @azygous was saying with great pictures to show you:
https://www.backyardchickens.com/threads/updated-go-team-tube-feeding.805728/page-2
https://www.backyardchickens.com/threads/updated-go-team-tube-feeding.805728/page-2