Snake...Snake eggs? What? I feel like I already had a random conversation about reptile eggs on a different series, lol, but...Snake eggs don't have the same kind of shell as bird eggs do. Whereas bird eggs are tear-shaped and have a hard shell that can be cracked open easily, snake eggs are leathery and oblong. So while the shape is drawn correctly, there is NO WAY a snake egg would crack open like it does on page 22 of this chapter. Also, because of this difference, you would realize immediately upon picking up a snake egg that it wasn't a chicken (or related fowl's) egg.
I mean, it's not like its a huge deal, especially for a fantasy manga I've suspended my disbelief for (like how in this world apparently NO ONE decided to at least TRY to make food taste good) but I just wanted to get this out of my system. ^^;
edit: ah, someone already pointed this out in a previous comment, my bad