BBC's Katy Sewall reports on a young girl in Seattle who has managed to set up a viable trade relationship with her neighbourhood's crows.
[Eight-year-old Gabi Mann]'s relationship with the neighbourhood crows began accidentally in 2011. She was four years old, and prone to dropping food. She'd get out of the car, and a chicken nugget would tumble off her lap. A crow would rush in to recover it. Soon, the crows were watching for her, hoping for another bite.
As she got older, she rewarded their attention, by sharing her packed lunch on the way to the bus stop. Her brother joined in. Soon, crows were lining up in the afternoon to greet Gabi's bus, hoping for another feeding session.
Gabi's mother Lisa didn't mind that crows consumed most of the school lunches she packed. "I like that they love the animals and are willing to share," she says, while admitting she never noticed crows until her daughter took an interest in them. "It was a kind of transformation. I never thought about birds."
In 2013, Gabi and 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.
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.