In 2013, Gabi and her mother Lisa started offering food as a daily ritual, rather than dropping scraps from time to time. Each morning, they fill the backyard birdbath with fresh water and cover bird-feeder platforms with peanuts. Gabi throws handfuls of dog food into the grass. As they work, crows assemble on the telephone lines, calling loudly to them. . . .John Marzluff, and he was not surprised:
The crows would clear the feeder of peanuts, and leave shiny trinkets on the empty tray; an earring, a hinge, a polished rock. There wasn't a pattern. Gifts showed up sporadically - anything shiny and small enough to fit in a crow's mouth.
One time it was a tiny piece of metal with the word "best" printed on it. "I don't know if they still have the part that says 'friend'," Gabi laughs, amused by the thought of a crow wearing a matching necklace.
Marzluff, and his colleague Mark Miller, did a study of crows and the people who feed them. They found that crows and people form a very personal relationship. "There's definitely a two-way communication going on there," Marzluff says. "They understand each other's signals."Amazing.
The birds communicate by how they fly, how close they walk, and where they sit. The human learns their language and the crows learn their feeder's patterns and posture. They start to know and trust each other. Sometimes a crow leaves a gift.
But crow gifts are not guaranteed. "I can't say they always will (give presents)," Marzluff admits, having never received any gifts personally, "but I have seen an awful lot of things crows have brought people."