The study, conducted September 2016 to March 2018, recorded about 65,500 visits to seven feeding stations across three California sites. These included the UC Davis Arboretum Nursery, a private home in Winters and The Gottlieb Native Garden in Beverly Hills. More than 60 percent of the tagged birds returned to feeders at least once -- some immediately, some months later. During spring and summer, most visits occurred in the morning and evening hours.
https://www.sciencedaily.com/releases/2018/12/181212200749.htm
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