A few more points of interest to go along with Sunday’s Outdoors page story on how Kansas-based biologists are taking their war against feral swine into parts of northern Oklahoma.
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– Sport hunting for feral hogs has proven to be one of the least effect methods for reducing the population. Such hunting pressure scatters populations and often makes the pigs become nocturnal. Of the 385 feral hogs eradicated at Fort Riley, only 15 were shot by sport hunters, despite several years of hunting.
– -The population of feral hogs in the U.S. is estimated to be at least 5 million animals, of which Texas has about 2.6 million.
– Kansas biologists have seen feral sows with up to about 12 piglets, and most all litters have had at least six piglets. Like domestic swine, feral sows can have two litters per year.
– Within about three generations, domestic pigs turned feral take on the looks of wild swine with smaller hams, bigger shoulders, longer and stronger snouts, longer tusks...
– Some herds of feral pigs date back to the 1500s, when Spanish explorers brought herds of domestic swine for a food source as they explored what’s now the southern U.S.
– The average Kansas adult feral pig weighs about 100 pounds. Some have been documented close to 500 pounds.
– Declines in many kinds of wildlife have been documented when feral hogs invade an area, destroying habitat, competing for food and, at times, eating the eggs of endangered species.
– Biologists usually suspect illegal releases by humans when a population suddenly appears with several animals, including sows. Most natural colonization by feral hogs is first done by boars.
– Feral hog control biologists annually kill about 20,000 wild pigs in Texas. Some aerial gunning projects have killed up to about 400 in a single day.
– Texas studies indicate each feral pig may be doing about $200 damage to the state’s agricultural practices annually.
– Shotguns with magazines large enough to hold eight to ten rounds, loaded with 00 buckshot are the preferred weapon when shooting from a helicopter. All shooting is done by specially-trained government personnel.
– Dogs have contracted illnesses and died from contacting feral hogs. Some hunters have gotten severely ill from diseases after such contact, and human deaths could be possible.
– In many states, domestic swine have developed diseases when feral hogs come into their area. A wide-spread outbreak of some diseases carried by feral pigs could cause millions of dollars in damages to the domestic pork industry.
– More than 650 Kansas landowners have given U.S.D.A. eradication crews access to more than 1 million acres to eliminate feral swine. The compliance rate of more than 99 -percent is probably the highest in the nation.
– U.S.D.A. biologists in Kansas use some modern tools to help with their war on feral swine. They have used night vision equipment to look for nocturnal herds. Recently, they’ve used cameras in traps that contact the biologist when something is within the trap area, and shows the biologists how many hogs are in the enclosure. The biologist can then push a button on his phone and the gate closes.
Source – Curran Salter, Mike Bodenchuk and Tom Berding