I agree that part of the art of hyperlinking is to give people an idea of why you think this thing worth linking to. That's probably easier in 500 characters than 300, but it is easier still when you're not thinking about length, hence the value of a site you control.
While people are understandably impressed by the murmurations of starling flocks, I am reminded of a brief clip of dunlin doing likewise, with one great advantage over starlings: their white undersides.
https://www.youtube.com/watch?v=AZVbCC-gpxI