I think it is safe to say, regardless of the total population, that 1000 birds dying in a single day as a result of an architectural decision is unfortunate.
It is “unfortunate”
It's proportionally like the equivalent death toll of NYC on 9/11 or slightly higher.
In NYC, 1 in 4000 people died on 9/11. In Chicago, 1 in 2000 birds died the other day. (Not to say it's equivalent at all, just that it's certainly a newsworthy event to the birds).
Not to be a prick, but this is HumanNews.
It's actually Hacker News. There's nothing inherently human about being a hacker.
Hacker News: 1000 bird hackers unsucessfully attempt to circumvent Chicago Convention center glass-wall.