Management Information
Preventative measures: Several techniques are available to prevent rock pigeons from establishing in an area or to exclude them if they are already established (Williams & Corrigan, 1994). Habitat modification includes physically altering roosting and nesting sites and removing food and water sources. The latter two aspects are critical for long-term control and require cooperation from the public. Exclusion methods, such as blocking access to roost sites or installing anti-perching devices are effective. Rock pigeons can also be prevented from perching or roosting by applying various chemical repellents to these areas. Physical: Williams & Corrigan (1994) suggested that frightening, repellents, trapping, shooting, and nest removal may be useful and practical approaches to manage rock pigeons in conjunction with habitat modification measures. Chemical: Toxicants, including both oral and contact poisons, may also be used to control rock pigeons. Oral poisons require prebaiting before the toxicant can be applied and can pose significant risks to non-target species (Williams & Corrigan, 1994). Fumigants can also be used to control rock pigeons, however, they are generally not practical (Williams & Corrigan, 1994).
Please follow this link for more details about preventative measures, physical and chemical control methods Hygnstrom, et al. 1994. Integrated management: Eradication campaigns have been carried out on Isabela, San Cristóbal and Santa Cruz islands using a combination of methods: shooting, catching them by hand, using baits laced with alpha-chloralose to stupefy them (Phillips, R. B., unpublished data).
Location Specific Management InformationBermuda
Pigeons are being culled and artificial burrows are being used to protect tropic birds (De Silva, 2003 in Varnham, 2006). Fiji
Effective control methods include netting-off breeding sites, shooting, trapping, habitat modification, frightening, repellents, toxicants, and nest removal (Ryan, 1999; Watling, 1999; Watling and Pernetta, 1978 and Post Fiji Web site). Galapagos Islands (Ecuador)
Successful eradication campaigns have been carried out on these islands (GNP and CDF, 2004). Isabela Is. (Ecuador) (Ecuador)
A campaign to remove rock pigeons present on Isabela began in 2004, led by the National Park with the collaboration of the Inter-institutional Management Committee for Introduced Species (IMCIS). 262 birds were removed during the first month of the campaign (GNP and CDF, 2004). San Cristobal Is. (Ecuador) (Ecuador)
A campaign to remove rock pigeons present on San Cristobal began in 2002, led by the National Park with the collaboration of the Inter-institutional Management Committee for Introduced Species (IMCIS). The programme began with a survey (it was estimated that there were 300 birds just in the urban areas and the agricultural zone. 802 birds were removed between 2002 and 2004. Bird numbers were significantly lowered as a result of this campaign, which has reached its final monitoring phase (GNP and CDF, 2004). Santa Cruz Is. (Ecuador) (Ecuador)
An eradication programme was implemented over 18 months during 2001 and 2002. After an intial survey for locations of birds, a combination of methods: shooting, catching them by hand, using baits and stupefying them using alpha-chloralose, were used to eradicate them. 429 birds from both urban as well as rural areas were removed. Monitoring to confirm eradication and for any reintroduction is ongoing (GNP and CDF, 2004).
Management Resources/Links
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