ML646400972

觀察細節

One of the locals flew south at rooftop height at 7:05, calling as it passed. The other member of the resident pair arrived from the east at 7:07 and made its way down to the street to pick at a roadkilled rat. After tearing off a few scraps of meat from the carcass, the bird flew up to a nearby power pole and deliberately, delicately placed a morsel on a portion of exposed wires. It let the meat rest there for several minutes, making slight positional adjustments once or twice, before picking it up and bolting it down. Given the sub-freezing temperatures this morning, it appears that the raven was intentionally warming its meal with this technological heat source, one of the more remarkable cases of tool use that I have personally observed in this species! It eventually flew west at 7:14, while the first bird could still be heard calling to the south