Yikes, poor Yoshi. Its primary attacks consist of consuming enemies then covering them in a crunchy shell, topped by defecating them. I wonder what specialized organs it had to develop to be able to do that in a span of a couple of second. It doesn't matter though, you'll ditch him to see what's in that high ledge, amirite?
Even with the high ledge, I'll try all my luck with the flutter jump. The poor bastard needs SOME action, right?