Olive-sided flycatcher (Contopus cooperi) COSEWIC assessment and status report: chapter 10

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Existing Protection or Other Status Designations

The Olive-sided Flycatcher (and its nests) is protected in Canada, Mexico and the US under the Migratory Birds Convention Act 1994. The IUCN Red Book lists the Olive-sided Flycatcher as ‘Near Threatened’, nearly qualifying for listing as ‘Vulnerable’ (similar to the COSEWIC Threatened status) under criteria A2bc+3bc when assessed in 2004 (BirdLife International 2004). The criteria A2bc+3bc stands for: (A) a reduction in population size based on (2) an observed, estimated, inferred or suspected population size reduction of ≥30% over the last 10 years calculated using (b) an index of abundance appropriate to the taxon and (c) a decline in area of occupancy, extent of occurrence and/or quality of habitat, and (3) a population size reduction of ≥30%, projected or suspected to be met within the next 10 years or three generations, whichever is the longer (up to a maximum of 100 years) using (b) and (c).

The global, national and provincial NatureServe conservation rankings for the Olive-sided Flycatcher are listed in Table 3. Only the Newfoundland and Labrador populations are listed as vulnerable; all other provincial and national rankings list the Olive-sided Flycatcher as ‘Apparently secure’ or ‘Secure’.