A movie about birds. A poop joke is an obvious. Disney did a nice splat the end on their short about birds.A whole poop sequence even, plus Looney Tunes style violence. Migration might be perfectly entertaining (plenty of Illumination's stuff is), but I generally expect more than that out of Disney.
How about a snow man speaking about how turtles breathe out of their butt?
Or a goat that found things with its butt?
Wearing your underwear inside out, front and back?
Unfortunately Disney's modern sensibilities are about the same.