randomtengureporter :
[[So, if Shichi has a gizzard, and doesn't chew, that means that Tengu swallow stones for digestion, right? Or is there some other mechanic at work in their guts?]]
Reponse:
As funny as it would be for Shichi to have to regularly swallow rocks — not all birds need stones to operate their gizzards. Tengu are one of those birds.
De jisuk - Source 4déc.2013