Weird uses for lasers

[john_lawson]

i admit i've scared a few birds egrets are scared bigtime crows a little most smaller birds dont trip on them that much 100mw techlaser pen unit btw

 

[Arayan]

Another example

Bird Gard Laser Gun

 

[Tech_Junkie]

There is a few. They must be selling because most of the companies are still in business.

I have not pointed at anything living yet, but when I go camping this summer I'll try the bat theory.

 

[HIMNL9]

Don't know about bats, are years that i don't see one of them around here ..... but i can say you that it work with ducks ..... i was playing with my 50mW green on the lake border, and pointed it near a group of them that was floating on the water ..... they flyed away all together quacking scared, before the dot reach the group ..... so, something in it have to scare them (but i don't really know why, if for the light itself or for the movement or for what).

 

[Cyparagon]

Squirrels have dichromatic vision. They would probably perceive the green laser dot as "black"

I don't see how. They just couldn't tell it apart from a different color. Light sources cannot be perceived as black unless you count wavelengths outside the range of a given response. But even then, only the source would be black, not the dot. IR laser dots are not "black" even to monochromatic vision (like a B&W camera).