How do I tube feed a chick

[Duckpooper]

I have a pretty lethargic chick that's about 7 days old. His crop feels empty and I'm unsure of where to put the feeding tube. I know the passage way to the lungs is lined up with the ending of the tounge but I have no idea where the esophagus is.

 

[Wyorp Rock]

The esophagus is on the bird's right side.

https://www.backyardchickens.com/articles/crop-feeding.75454/

Photo reference
https://www.backyardchickens.com/ar...dications-to-all-poultry-and-waterfowl.73335/