While at first glance this looks exactly like the sort of thing where I’d think “Kite,” on second glance I think Easy Muffin has nailed it above. The second smaller object appears to be a bird, circling, nearer to the camera, not related to the plane and banner.
And here was me all ready to point out that kites often attract birds, and wonder if it all might be a kite that has two curious birds around it.
While wondering why one “bird” seemed to stay pretty much in the same spatial relationship to the “kite” all the time.
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