Aerial acrobats of the biosphere: Swallows

During this year’s Bras d’Or Watch field day on July 14, participants noted flocks of swallows (Mi’kmaq: pukwales) at all five sites. These charismatic acrobats were quite numerous and entertaining. Their apparent abundance is of interest because swallow populations worldwide are facing significant population declines. In 2014, the alarm bells went off among North American…