All up in a line

If you've seen these birds puttering around on top of the tunnel in the beginning of the level in Land of the Livid Dead, BEFORE you saw this picture, gimme a thumbs up.
If you've ALSO seen the ones that appear right behind you at the beginning of that level, gimme two thumbs up!
And if you've seen them somewhere else in the level, that's awesome, because I don't remember where they appear besides those two spots.

Woohoo, a DevID. Wish I could have submitted a larger version. Yet again, I take some weird, obscure little creatures and put them in the spotlights. They're so cute! They don't even have eyes, if I'm correct.