Tag Archives: second generation anti-coagulant rodenticides

Important Information for Cape Ann Wildlife Supporters!

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Do you want to help rid our community of rat poison, specifically SGARS, which is the rat poison attributed to killing our local hawks, eagles, owls, and falcons? Please attend the City Council meeting on Tuesday, Aril 8th, and read the following from Caroline Haines, founder of the organization Rescue Gloucester Wildlife.

Dear Rescue Gloucester Wildlife supporters,

 

There is good news regarding our efforts to eliminate or reduce the use of SGARS (second-generation anti-coagulant rodenticides) in Gloucester. The Gloucester City Council will consider a proposed ordinance to ban the use of rodenticides on city owned property.  It is scheduled for a Public Hearing at the next council meeting on Tuesday April 8th at City Hall. The meeting begins at 6, but the agenda is lengthy, and the ordinance is not early on the agenda. Advocates will have three minutes to speak about the proposal.  I will be speaking, and I plan to prepare ahead so that I can get all of my points squeezed in, in the allotted time. I hope that many of you will consider giving heartfelt testimony, too. If you are not able to attend, sending an email or making a call to a councilor is another way you can make an impact. There is a lot of support on the council itself, but the more they hear from us, the better. Councilors Gilman, Gross, Grace, Nolan, and Benson have been very encouraging and helpful. And Councilor Worthley put the motion forward. 

 

Currently the proposed ordinance is being reviewed by the city’s legal department and some technical language is being revised.  There is a caveat in subsection (d) that allows that “the Director of Public Works may choose, after determining that less toxic integrated pest management strategies would be or are ineffective, to use SGARS for the period of time he/she deems necessary. The only requirement is that he/she share this information publicly as well as directly with the Mayor and the City Council.”   This is somewhat concerning. I would prefer a clear time limit on the temporary use of SGARS and I don’t like the “would be” language, which seems to imply that the DPW doesn’t have to try integrated pest management first, before resorting to rodenticide use. If this concerns you, too, please speak up about it, or email your councilor. Council email addresses are simply first initial, last name @gloucester-ma.gov  (i.e., tgross@gloucester-ma.gov).

 

Council Chair Tony Gross has promised to keep me posted if the proposed ordinance is rescheduled for any reason.  I will post on our Rescue Gloucester Wildlife Facebook page if this should happen. Otherwise, I hope to see some of you at the Council meeting on April 8th.  Thank you all for interest and efforts in eliminating these destructive poisons from our environment.

 

Onward,
Caroline Haines

Local Coyotes Suffering from Mange and Connecting How Household Rat Poison Kills Our Beautiful Wild Creatures Including Owls, Hawks, Eagles, Foxes, Coyotes, Bobcats, and Snakes

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The photos are of two neighborhood Coyotes suffering from varying degrees of the parasitic disease, mange. Both are slowly dying from pain and starvation. The two are elusive, yet seen frequently roaming backyards and roadways in East Gloucester and Eastern Point in broad daylight.

The photo below shows what a Coyote typically looks like at this time of year. His coat is full and lush and will keep him warm on the coldest of days. His eyes are wide open, alert, and bright  and he is standing strong.

The disease is treatable by wildlife rehabbers, if they can get to the animal in time however, it is especially challenging to capture Coyotes.

What exactly is mange? There are several types but the one that most often affects members of the Canid Family (dogs, fox, coyote, and wolf) is Sarcoptic Mange.

Sarcoptic Mange is a highly contagious skin disease caused by parasitic mites that burrow under the creature’s skin.

Signs of Sarcoptic Mange include hair loss, scabs, and foul smelling crusts as a result of secondary skin infections.

How does untreated mange kill? Mange causes the animal to lose weight, which leads to dehydration. Animals with mange are too weak to forage for food and usually starve to death. Hair loss from mange leads to hypothermia in cold weather and mange also leads to secondary infections that can cause blindness and impaired hearing.

What is the connection between Sarcoptic mange and household rat poison? Simply put, when a rat or mouse consumes rat poison (rodenticide), these toxins accumulate in the rodent’s body. When a mammal eats a rodent poisoned by rat poison, the poison accumulates in the mammal’s body, weakening  its immune system and making the mammal much more susceptible to diseases like mange.

How does rat poison typically kill raptors?  The household rat poison currently on the market and readily purchased is called second generation anti-coagulant rodenticides (the acronym is SGARS). These rodenticides work by depleting the body of vitamin K, which is critical for the development of clotting factors. Without these factors, blood cannot clot properly which results in hemorrhage both internally and externally.

SGARS do not work immediately and the rodent may repeatedly visit the bait station. The slowly dying rat or mouse often behaves erratically and is easily caught by a predator, whether avian or canid. The anti-coagulating properties of the poison do not stop working on the rodent prey once it is consumed by the predator. The poison enters the bloodstream of the predator that has eaten the rodent. Especially when the rodent has visited the bait station multiple times, a raptor may consume a lethal dose with only a single rodent. The predator suffering from secondary rat poison is also more susceptible to starvation and other diseases.  A recently completed study by Tufts Wildlife Clinic reported that 100 percent of the 43 Red-tailed Hawks treated over the past two years tested positive for SGARS.

Seabrook, the Snowy Owl found at death’s door, was successfully treated for SGARs in 2022

Is mange contagious? Mange is highly, highly contagious between members of the same species and across species. For example, Coyotes often use Red Fox dens for pupping where they would come in contact with the parasite. From Cornell,  “A host becomes infected by direct contact with an affected animal or by coming into a contaminated environment like burrows or nests where free-living mites can survive for several weeks in high humidity and low temperatures. Once infected, the mites burrow into the outer layer of skin and form tunnels where females lay their eggs. In 3 or 4 days, the eggs hatch into larvae, which either remain in the tunnels or move to the surface of the skin. The larvae develop into nymphs in 3 to 4 days and then into adults in another 5 to 7 days. The complete life cycle of a male take 13 to 16 days and a female about 18 to 23 days.”

To report sightings of mange infected mammals call MassWildlife at 508-389-6300 or email. MassWildlife@mass.gov

Cape Ann Wildlife specializes in treating raptors suffering from rat poison.

Newhouse Wildlife rescue specializes in treating mammals with mange.

Wildlife and Rodenticide

Support the petition to ban SGARS in Massachusetts