Laser pointer solves the problem of crows and geese
Crows are annoying to eat garbage, "dirty", "terrible" attacking people, disrupt the ecosystem and "trouble" too much. They eat anything that humans eat, such as meat/fish and its processed products, rice/noodles, eggs, and mayonnaise. During the breeding season (approximately late March to early July), they build nests, lay eggs and raise chicks. Therefore, when someone approaches the nest or a chick that has fallen from the nest during this period, the crow may intimidate or attack the person to protect the chick. In recent years, the droppings of crows and pigeons have become a problem. Although the amount of feces of a bird is not that large, it has the habit of living in groups, so if it is left unattended, the balcony will be full of feces, even if it is cleaned, it will not catch up. When will the social phenomenon of the "crow problem" be resolved?
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Light Source
In order to drive away the crows, I think trying to use a high powered laser gun with my own near-infrared is classified as boring. I can’t see my LD is cheap but I plan to use a handheld handheld camera in sight, because it seems that if the camera passes, I’m considering making a low price 808nm laser. The laser pointer drives the crow. The traditional green laser pointer uses automatic power control or feedback circuit to control the output, but problems such as excessive power consumption, reduced illumination during continuous use, and light flicker have always been problems. The next-generation green laser pointer of the laser pointer, by installing an IC circuit on the green, remarkably stabilizes the output and solves these problems. There are several types of human color vision, and some types have difficulty in perceiving specific color differences.
2021-11-13 06:54:02
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