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Animals 2014, 4(1), 1-15; doi:10.3390/ani4010001
Article

Effectiveness of Gel Repellents on Feral Pigeons

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Received: 30 October 2013; in revised form: 12 December 2013 / Accepted: 12 December 2013 / Published: 19 December 2013
(This article belongs to the Special Issue Urban Wildlife Management)
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Simple Summary: Feral pigeons live in close association in urban areas. They constitute serious health risks to humans and also lead to high economic loss due to costly damage to buildings, historic monuments, statues and even vegetation. While numerous avian repellent systems are regularly introduced onto the market, scientific proof of efficacy and their use from the point of view of animal welfare is lacking. Therefore, two avian gel repellents were studied on free-living feral pigeons in this study. The focus was set on repellent efficacy and animal welfare concerns. This study’s aim is to contribute to a better understanding of feral pigeon management in our cities.
Abstract: Millions of feral pigeons (Columba livia) live in close association with the human population in our cities. They pose serious health risks to humans and lead to high economic loss due to damage caused to buildings. Consequently, house owners and city authorities are not willing to allow pigeons on their buildings. While various avian repellents are regularly introduced onto the market, scientific proof of efficacy is lacking. This study aimed at testing the effectiveness of two avian gel repellents and additionally examined their application from animal welfare standpoint. The gels used an alleged tactile or visual aversion of the birds, reinforced by additional sensory cues. We mounted experimental shelves with the installed repellents in a pigeon loft and observed the behavior of free-living feral pigeons towards the systems. Both gels showed a restricted, transient repellent effect, but failed to prove the claimed complete effectiveness. Additionally, the gels’ adhesive effect remains doubtful in view of animal welfare because gluing of plumage presents a risk to feral pigeons and also to other non-target birds. This study infers that both gels lack the promised complete efficacy, conflict with animal welfare concerns and are therefore not suitable for feral pigeon management in urban areas.
Keywords: capsaicin; Columba livia; contact gel; feral pigeon; optical gel; repellent gel capsaicin; Columba livia; contact gel; feral pigeon; optical gel; repellent gel
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Stock, B.; Haag-Wackernagel, D. Effectiveness of Gel Repellents on Feral Pigeons. Animals 2014, 4, 1-15.

AMA Style

Stock B, Haag-Wackernagel D. Effectiveness of Gel Repellents on Feral Pigeons. Animals. 2014; 4(1):1-15.

Chicago/Turabian Style

Stock, Birte; Haag-Wackernagel, Daniel. 2014. "Effectiveness of Gel Repellents on Feral Pigeons." Animals 4, no. 1: 1-15.


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