At last I know what to call those mats of hair that tell me Edwina has found a new "special place" -- middens

Occasionally I come across a Bucket midden, a flattened mat of gray hair on some high and distant shelf, but I'm always one step behind. It's as though she had been a radical in the '60s, had been indicted in an unfortunate bombing incident and had been on the run ever since.
Great column! So descriptive!