About a week ago I posted a photo of a raven in flight. I had heard tales of raven's intelligence and habits before but had never realized what impressive fliers they were. The raven in the picture here was soaring on the thermal updrafts rising from Diablo Lake many feet below as well as any hawk or eagle I've ever seen.
He (or she) also sports bands on each leg, one green, one red. I wish I knew what aspect of his habits or behavior is being studied.
It seems that ravens are fairly common in the North Cascades as are crows. It was difficult to tell the difference from a distance. A bird book I have in front of me describes the call of the raven as a "croonk" whereas the crow really does make a "caw" sounds. The small town of Mazama that we stayed in seemed full of crows and their cawing would wake me up in the morning.
At a ranger station a bit east of Mazama we learned that the local raven had picked up the habit of stealing wiper blades from parked cars. The rangers recommended putting something over the blades while parked in the parking lot. I once had a wiper blade stolen by a human but they did it for the obvious reason of replacing one of theirs. What did a raven need with them? One can only guess.