Evaluation of Effectiveness of Bird-Scaring Operations at a Sanitary Landfill Near CFB Trenton, Ontario, Canada,
Abstract
During 1 April - 24 June 1983, daily bird-scaring operations were undertaken by a private contractor at Quinted Sanitary Landfill Site (SLS) to help reduce hull numbers at nearby CFB Trenton. We made independent bird observations each week during that same period both at Quinte SLS and at two control SLS's where no bird-scaring operations took place. The effectiveness of individual visits to Quinte SLS by the bird-scaring personnel was usually of short duration; about 30 minutes after departure of the bird-scaring personnel gull numbers increased to those prior to the scaring operations. Prior to bird-scaring operations, gull numbers at Quinte SLS were most likely similar to those at the control SLS's. The frequent (2 or more a day) bird-scaring visits to Quinte SLS resulted in a large reduction in gull numbers, as compared to gull nunbers at the control SLS's and to the number of gulls that was most likely present before the scraing program. The long-term, cumulative effect of the persistend harassment of the gulls was a large drop in gull numbers, despite the fact that individual bird-scaring visits had only limited success.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 25, 1984
- Accession Number
- ADP004201
Entities
People
- C. Risley
- H. Blokpoel
Organizations
- Canadian Wildlife Service