As TV Tropes quotes:
"You've got a big balloon. The balloon is so big that you're actually floating up into the air. But what's this? A bird is approaching your balloon and you suddenly realize how sharp the beak is...POP!!!"

If you have a party balloon or some other inflatable (inner tube, hot air balloon, weather balloon, etc), it always seems that there's a bird around to break it. Usually Played for Laughs, especially in cartoons - yet if you're floating high up in the air..."

Oh, and I've got a short story description too... pfft

After this Murkrow is displeased seeing a blue blimp blocking the way south, the bird decides to plan to pop the balloon, but is surprised that the balloon is actually a Bagon planning on flying this way! After Murkrow insulting Bagon and arguments in the sky, Murkrow is aiming his beak to Bagon's blimpy body and Bagon is feeling like this plan is going to blow up!

Josh: "OK I'm not saying the rest of these sentences, good thing someone let me borrow these censored signs... I'll just say it isn't a pretty sight.. I hate things that explode personally.."