Are birds still falling out of the sky?

[Quixote1818]

Did they ever discover what was causing them to die?

I was thinking about this yesterday and was wondering if it might be a lack of Oxygen? With the increase in CO2 I would think there would be less Oxygen in the atmosphere especially in large city's. Birds need a tremendous amount of Oxygen with there massive bursts of energy when flying. Because they are so small I wonder if a small decrease in Oxygen and increase of CO2 in the atmosphere might cause these birds to faint while flying? Then again birds fly at very high altitudes where Oxygen is limited. So, I am not sure if my Hypothesis holds much weight? :shrug:

Thoughts?

[proReality]

1. I wonder if it's from all the microwaves...

from cell towers.

[RC]

2. Naaa..., they are just paranoid about flying into wind generators.

Scares them to death.

[MonkeyFunk]

3. No

it's the obesity epidemic. It's increasing the gravitational pull over population centers.

[mr_hat]

4. Every time you are near, yeah.

[Cerridwen]

10. If you were channeling the Carpenters and if I just 'got that'

I may have to hurt something.

LOL

Great! Now I've got an earworm.

*sigh*

[AlienGirl]

5. Aspergillosis, last I heard

The oxygen content of the atmosphere hasn't changed enough to inconvenience birds, much less kill them. Birds have huge and efficient respiratory systems; they're okay at higher altitudes than humans. However, because their respiratory systems are so *big* relative to their size, and include structures other than just lungs, birds are very susceptible to airborne pollutants and to respiratory infections.

The most recent bird die-offs were caused by aspergillosis, a mold that invades the lungs and air sacks.

In other words, it's not what's *not* in the air that's a killer; it's what's there that shouldn't be.

Tucker

[Quixote1818]

11. Informative answer! Thanks You!. nt

[Buzz Clik]

6. Any birds living within 100 miles on either side of I-70 in Indiana ...

... better find a roost. High winds and heavy snows on the way.

[hobbit709]

7. Increase in CO2

is measured in parts per million, the corresponding decrease in O2 is also measured in parts per million. Oxygen is about 21% of atmosphere so decrease is neglible. Disease or toxins are the most likely culprits.

[Buzz Clik]

8. The increases in CO2 are still pretty small.

Increases from 0.0003% to about 0.00038% are significant, but they have no real impact on O2 levels (20+% and holding).

[Quixote1818]

9. Thank you! I already feel like I am breathing easier! nt