Feral Swine


Dan Clark, USDI National Park Service, Bugwood.org 

Dan Clark, USDI National Park Service, Bugwood.org
– See more at: http://www.invasive.org/browse/detail.cfm?imgnum=1486025#sthash.UsRbrHr4.dpuf

Feral swine Sus scrofa were once domestic pigs from Europe and Asia. Since being brought to the United States, some have become free-ranging feral swine populations. Although they may look like domestic pigs, feral swine are very aggressive and pose serious threats to humans and local ecosystems.


Appearance: Resembles domestic pigs with wide varieties of coloration. Some have spots, stripes, belting, or are solid brown. May have tusks up to 5 inches in length. On average, adults range 110-130 pounds but can weigh up to 400 lbs. Offspring: Born year-round in litters of 1-8 piglets. Gestation time is 115 days, allowing for several litters each year.

(Photo Credit: Vladimir Dinets, University of Miami, Bugwood.org)


Feral Swine compete with native wildlife for food and prey on their young; foul water quality with their waste and wallowing activities; cause erosion and damage to a variety of habitats and quickly destroy natural and agricultural landscapes with their rooting behavior. They also transmit diseases to domestic livestock and humans. They have sharp tusks and can be aggressive toward humans and other animals.

(Photo credit: Billy Higginbotham, Texas AgriLife Extension Service, Bugwood.org)


NYS State Law: “As of October 2013 it is illegal to import, breed or release Eurasian boars in New York. After September 1, 2015, it will be illegal to possess, sell, distribute, trade or transport Eurasian boars in the state. In addition, a new regulation adopted on April 23, 2014, prohibits the hunting or trapping of free-ranging Eurasian boar statewide.” -NYS DEC

For more information visit on state management and new feral swine, regulations visit http://www.dec.ny.gov/animals/70843.html .


Prevent the introduction of invasive species into the SLELO PRISM.

Rapidly detect new and recent invaders and eliminate all individuals within a specific area.

Share resources, including funding personnel, equipment, information, and expertise.

Collect, utilize, and share information regarding surveys, infestations, control methods, monitoring, and research.

Control invasive species infestations by using best management practices, methods and techniques to include: ERADICATION (which is to eliminate all individuals and the seed bank from an area), CONTAINMENT (which is reducing the spread of established infestations from entering an uninfested area) and SUPPRESSION which is to reduce the density but not necessarily the total infested area.

Develop and implement effective restoration methods for areas that have been degraded by invasive species and where suppression or control has taken place.

Increase public awareness and understanding of invasive species.

Develop and implement innovative technologies that help us to better understand, visualize, alleviate or manage invasive species and their impacts or that serve to strengthen ecosystem function and/or processes.

Rob Williams
PRISM Coordinator

Megan Pistolese
Outreach and Education

Brittney Rogers
Aquatic Invasive Species

Robert Smith
Terrestrial Invasive Species