Our
conclusion: |
With
bare eyes, it would be impossible to see monarchs at any of the
altitudes except 500 feet. Even then, the monarchs would probably
not be visible without the help of binoculars. If there were a
large number of monarchs, you might notice them as tiny dots moving
across the sky.
|
Did
you notice? |
At
500 feet you can see a car's windows and the blue part of the American
flag. Click the image to find them.
Monarchs
are so much smaller, they would look like small dots in comparison,
if you could see them at all.
|
|
Just
think: Monarch migration can be invisible! |
When
people watch migration from the ground, monarchs can travel overhead
without being seen. Nobody knows for sure how high monarchs fly during
most of their migration because we can't necessarily see them! |
|
Try
your own experiment: Monarch migration eye test |
Exactly
where do monarchs disappear from view? Somewhere between 0 and 500
feet? You can design your own experiment to find out.
This
picture shows where we began. What do you think we did?
|
|
Cool
Observations: Evidence of How High They Can Fly
>> |