I. Different Kinds of Ravens
Ravens are large passerine birds that comprise the genus Corvus in the family Corvidae. These are the most common ravens found in North America.
* The American crow (Corvus brachyrhynchos) is a large species of passerine bird in the Corvidae family. It is a common bird found throughout much of North America. In the interior of the continent south of the Arctic, it is simply called the raven, since no other bird of this type lives there on a regular basis.
* The fish crow (Corvus ossifragus) is a typical-looking crow associated with wetland habitats. This bird species is superficially similar to the American crow, but is smaller (36-41 cm long) and has softer, silkier plumage in comparison.
The differences are often only really apparent between the two species when they are next to each other or by their calls. The bill is usually a little thinner than the American Crow, but again, this may not be much help when there is no other bird to compare.
* The common raven (Corvus corax), also known as the northern raven, is a large all-black passerine bird in the crow family.
II. crows like pests
Ravens not only feed on freshly dropped seeds in rural areas, but also gather nightly, starting with groups of half a dozen, which then unite to form a group of twenty to thirty and so on until the flock it is quite big and noisy. It is his custom to return to the same place every night.
Machinery of various kinds, such as miniature windmills or horse rattles set in motion by the wind, are often used to scare away crows; however, all these devices soon become familiar to the birds, so they quickly become useless.
3rd Basic Crow Control
* The Scarecrow: The most effective method to scare away crows from a cornfield, according to experience, is to combine scarecrows with the frequent use of the shotgun. Nothing terrifies these cunning animals more than the sight of game and the explosion of gunpowder, which they have so often known to be fatal to their race. But of course, if you want, you can leave the gun behind. The scarecrow is a device, traditionally a human figure dressed in old clothes or a mannequin used to deter crows from disturbing crops (hence the name).
Modern scarecrows rarely take human form. On California farmland, highly reflective aluminum PET film tapes are tied to plants to create reflections from the sun. Another approach is propane fueled automatic noise guns.
The scarecrow method is a motion sensor sprinkler and is an excellent method of getting rid of crows. The crow cannot be hurt, and other creatures such as squirrels, raccoons, deer, dogs, and cats are also repelled. It might also be fun to try fireworks, strobe lights, sirens, horns, music, or right-wing radio shows.
* Perch repellents: Ravens are difficult birds to eliminate because they are persistent pests and their populations in urban areas are usually quite large. If you live in a rural area, crow control is pretty simple: scare them or shoot them. If you live in an urban area, the chance of being arrested after firing a gun outdoors is high.
Your first line of urban defense against crows is mechanical perch repellent: those sharp wires and needles you see on the ledges and roofs of many state institutions.
*Bird Repellents – There are a ton of bird repelling chemicals and devices on the market today. You can’t type bird control into a search engine without an entire results page filled with home pages of bird control device manufacturers.
However, one of the most trusted brands on the bird repellent market is Bird-X. Bird-X’s policy is to provide non-lethal, non-harmful, environmentally safe and ecologically sound products, or so they say. Check it out yourself to confirm these claims. In addition, Bird-X regularly receives referrals from the Audubon Society and the USDA Animal Damage Control division. You can’t go wrong with an endorsement from the Audubon Society.