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The glass at McCormick Place in Chicago is a lethal obstacle for birds

theguardian.com

21–30 of 131 posts

Re: The glass at McCormick Place in Chicago is a lethal obstacle for birds

#21

[flagged]

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).

Re: The glass at McCormick Place in Chicago is a lethal obstacle for birds

#22
post #21

[flagged]

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.

Re: The glass at McCormick Place in Chicago is a lethal obstacle for birds

#23
post #9

For buildings that don't have permanent bird strike mitigation measures built in, I wonder if temporary whitewash applied by window cleaners would help.

It seems to me that that would be an effective temporary solution, but would have to be re-applied following rain. The bigger problem would be cost. The building in the article is McCormick place which was hit pretty hard during Covid and is likely still recovering (financially.) But no business is likely to spend the $$$ to mitigate the issue unless they are forced.

The bigger problem is that this is not the only building in Chicago that is hazardous to birds. Fix this one and there will be another noteworthy for the "most bird strikes" in Chicago.

Re: The glass at McCormick Place in Chicago is a lethal obstacle for birds

#25
post #16

Earlier quoted context omitted.

Both Chicago and Illinois have bird friendly building ordinances but the building in question was built in 1960 long before they existed. It’s also massive so mitigations will take a long time to be applied.

> It’s also massive so mitigations will take a long time to be applied. Surely it cannot be too hard to slap 2 or 3 anti-collision decals on every window from the outside?

There are stickers on the building. It is a nearly 600000 square foot building and the exterior is all windows.

1000 birds don’t hit it _every day_ this was an exceptional even caused by specific conditions.

The facility is actively trying new lighting solutions to mitigate bird strikes as that’s the main issue.

Re: The glass at McCormick Place in Chicago is a lethal obstacle for birds

#26
post #16

Earlier quoted context omitted.

> It’s also massive so mitigations will take a long time to be applied. Surely it cannot be too hard to slap 2 or 3 anti-collision decals on every window from the outside?

There are stickers on the building. It is a nearly 600000 square foot building and the exterior is all windows. 1000 birds don’t hit it _every day_ this was an exceptional even caused by specific conditions. The facility is actively trying new lighting solutions to mitigate bird strikes as that’s the main issue.

A crew of window cleaners could hit it in under a week

Re: The glass at McCormick Place in Chicago is a lethal obstacle for birds

#27
post #2

Regulation is the answer here since the mitigation methods are known

Regulations have existed in Chicago for over 50 years. The building predates it, and has been adding mitigations such as changing lighting and applying stickers for some time now.

This is not a common occurrence for the building in question.

Re: The glass at McCormick Place in Chicago is a lethal obstacle for birds

#28

I highly encourage anyone who had birds crash on their windows to install white dot stickers. I installed some last spring on my windows and not a single bird crashed on them since. At first they look a bit odd, but after a week they were almost invisible, turns out the brain is really good at hiding things we don't care to see. They are a bit of a pain to install but it is well worth the effort.

Worth mentioning there are pricier but even more invisible, similar idea solutions. I've got stickers I put on my house and have suggested to clients that are translucent in the visible spectrum but strongly reflect UV. Lots of birds (and in particular songbirds, these are on rural residential buildings with no more than 3 stories so raptors aren't going into them) have receptors for ultraviolet, so to them the stickers look opaque glowing white. They're effective and may be more aesthetic, though again more expensive (they need to be replaced every 6-9 months, the chemical that reflects UV breaks down). Another approach I've used is a sticker that simulates a golden spider web. While not translucent, the thin web look is very subtle, but apparently a lot of birds have evolved to be very hard wired to avoid flying through heavy spider webs so it triggers an avoidance response well.

Finally, there are bug screens that have gotten very subtle too (high density thin weave with low visibility materials used in their construction). As well as reducing external reflection, those will just plain act as a softer shock absorber if a bird runs into one. And of course keep out insects, so doing their job anyway.

I'll add that I still do have (far fewer) bird hits once in awhile, but the big change seems to be outcome. Before a lot of birds died. Afterwards what seems to happen is the hits still see it at the last moment, and the hits have 99% turned into bellyflops. Not fun for the bird no doubt, but it also isn't lethal, they just fly away. Bird death in my experience is generally caused by broken necks, they fly in head first and their neck snaps and that's it. So even if they swerve as the very last moment, it's still a huge boost in survivability. On a big building it might help to have some nets out of sight below windows though so that birds which are temporarily stunned don't fall all the way to the ground.

Re: The glass at McCormick Place in Chicago is a lethal obstacle for birds

#29

I highly encourage anyone who had birds crash on their windows to install white dot stickers. I installed some last spring on my windows and not a single bird crashed on them since. At first they look a bit odd, but after a week they were almost invisible, turns out the brain is really good at hiding things we don't care to see. They are a bit of a pain to install but it is well worth the effort.

I don’t like stickers on my windows, ruins the aesthetic. Instead we should have some kind of spray that transmits a wavelength of light only birds could see but is invisible to humans.

Re: The glass at McCormick Place in Chicago is a lethal obstacle for birds

#30

Earlier quoted context omitted.

There are stickers on the building. It is a nearly 600000 square foot building and the exterior is all windows. 1000 birds don’t hit it _every day_ this was an exceptional even caused by specific conditions. The facility is actively trying new lighting solutions to mitigate bird strikes as that’s the main issue.

A crew of window cleaners could hit it in under a week

It has stickers
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