Frigatebirds have the largest ratio of wingspan to body weight of any bird in the world and can spend a week at a time aloft.

Just in case you missed it:

Not content with robbing fresh food from the mouths of other birds, a
frigatebird will unyieldingly vex another bird until it regurgitates
partially eaten food. Again, the frigatebird with its swift aerial
ability will snatch the bolus in midair or deftly pluck it from the
water's surface.

It forces other birds to vomit so it can eat it.