Picky songbirds demand native oaks.
Watching wildlife near his Sacramento home, Airola noticed migratory songbirds tended to prefer valley oaks to other trees. He teamed with UC Davis professor Steve Greco, an urban ecology expert, to do a formal study, centered in Airola’s Curtis Park neighborhood – home to valley oaks that are centuries old.
https://www.sacbee.com/entertainment/living/home-garden/article195461374.html
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