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Government research finds EZ Grip is most humane trap for coyotes

 


According to Phillips et al. 1996, "Some level of edematous swelling was noted on nearly all the legs (95%) with no apparent difference among trap types [see excerpt from table right]. Lacerations were observed in 87% of the legs from unpadded Sterling and Northwoods traps while only 31% of the coyotes captured in EZ Grip padded traps received cuts. A higher frequency of more serious injuries such as joint luxations, major periosteal abrasions, bone fractures, and amputations were noted in the 2 unpadded traps (Table 1). Major periosteal abrasions were observed in 39% and 26% of the legs from laminated Northwoods and Sterling MJ600 traps, respectively. In comparison, only 2% of the legs trapped in EZ Grip traps showed major periosteal abrasions."

"The Reduced number of injuries for coyotes captured in padded EZ Grip® traps confirmed the findings of earlier studies (Olsen et al. 1986, Linhart et al. 1988, Onderka et al. 1990). Even though the EZ Grip padded trap was much larger and stronger than the No. 3 Victor Soft Catch, injury patterns we observed appeared to be similar for the 2 traps."

From Phillips, R. L., K. S. Gruver, and E. S. Williams. 1996. Leg injuries to coyotes captured in three types of foothold traps. Wildlife Society Bulletin 24(2):260-263. (Phillips is a Wildlife Research Biologist with the U.S. Department of Agriculture’s Denver Wildlife Research Center (DWRC), where he serves as Project Leader for Depredation Control Techniques.)

According to Andelt et al. (1999), a majority of the general public around the world seems to have an anti-trapping sentiment, based mostly on a desire for humane capture and the public’s limited knowledge of trapping. Although padded traps have been available since 1985, only 3% of traps owned by trappers are padded, probably due to the “low capture efficiency of early models.”
“Coyotes captured in Number 3 Soft Catch traps, modified with stronger or additional coil springs or in the larger number 3 l/2 EZ Grip trap, sustained significantly fewer or similar foot injuries compared to coyotes captured in Soft Catch traps with standard and weaker coil springs.”

From Andelt, W. F., R. L. Phillips, R. H. Schmidt, and R. B. Gill. 1999. Trapping furbearers: an overview of the biological and social issues surrounding a public policy controversy. Wildlife Society Bulletin 27(1):53-64.

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