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17 August 2021 Bird-Arrival Dates and Climate Change, Sherbrooke, Quebec
Norman K. Jones, Gary A.F. McCormick
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Abstract

Evidence for earlier spring arrival times of migratory breeding birds is often linked to changing climatic conditions, especially increasing temperatures. Using data collected and recorded in a research diary, this article documents changes in bird-arrival dates within the city of Sherbrooke, QC, Canada. Spring arrival dates of 31 bird species were observed and recorded over a 26-year period, from 1994 to 2019, during a series of 1376 walks along a regular 6.5–7.5-km route. Temperature data for this period were collected from the regional Environment Canada climate station. Arrival dates displayed a strong correlation to changing climate conditions; 28 species had a trend toward arrival dates when correlated to mean temperatures, and this effect was significant in 12 species. Climate change, as indicated by increasing spring temperatures, seems to be having a major influence on the advancement in bird-arrival dates in the spring at this locality.

Norman K. Jones and Gary A.F. McCormick "Bird-Arrival Dates and Climate Change, Sherbrooke, Quebec," Northeastern Naturalist 28(3), 371-382, (17 August 2021). https://doi.org/10.1656/045.028.0310
Published: 17 August 2021
JOURNAL ARTICLE
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