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Most recent publication results synopsis: Horicon Marsh/ Hustisford Wisconsin crop damage reduction tests with the Goosebuster

The following is an excerpt from the paper “Successful Use of Alarm and Alert Calls to Reduce Emerging Crop Damage by Resident Canada Geese near Horicon Marsh, Wisconsin”

If you would like read the full paper, click here.

Increasing Canada geese create increased air strike potential. Successful new methods for dispersing resident geese from sprouting crops should be equally effectives near airports. From 16 May – 28 August, 2007, alarm/alert call playback from GOOSEBUSTER@ call units, Bird –X Inc, Chicago Il., was used with one minute delayed reinforcement by cracker shells to reduce goose numbers at a sewage treatment plant, and farms evidencing heavy summer crop loss near Horicon Marsh, Wisconsin. Using call units coupled with pyrotechnics produced the most rapid method for inducing long term site avoidance by geese reported to date. Geese vacated areas >1 km within 4 days of first tests. Pretest Goose/gosling densities on all three sites tested were in excess of 200 bird/km2. Goose presence dropped from >14445 goose hours/week to < 53.6/week,, and from >36000 to < 200 goose/hr/month, for the sewage plant and largest farm, respectively, in only 4 days and three uses of calls and shells, each. Numbers remained at lowest levels, and no sign of habituation to the method was observed during 100+days. This method should provide effective long-term displacement of Canada geese near/on airports with < 2 hours of human effort/month, based on this study.

Figure 1. Reduction in goose hours per week with use of alarm calls and human harassment for 45 minutes, duration and degree of reduction, and further reduction with alarm calls reinforced with screamer and banger shells.

Figure 2. Reduction in goose hours per month by brood-rearing and molting resident Canada geese on two farms on a point in Lake Sinissippi following “on-demand alarm call playback” reinforced with screamer and banger shell use, initiated 5 June 2008.