Probably two birds. Looking at the source video frame by frame it seems like the objects go from white to black. Having captured many videos with the UFO Detector I know that this is the effect you get from the wings of a seagull
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I'm no scientist, nor expert...
But wouldn't it be possible, that what we just saw there is a meteor, burning completly while entering?
That is very likely.
To me it kind of looks like a (small) shooting star.
It definitely could be a shooting star. Especially since it moves in a straight line. However, having seen a few personally I have never seen one with such speed!