Students, But Not Crows, Reacted To Cheney Mask : The Two-Way Crows can recognize faces -- and if Dick Cheney hasn't been mean to them, ... one wore a caveman mask while putting bands on crows.

But at this point in the “caveman” mask experiment, the birds who were initially captured are all dead, as are most, if not all, the birds who witnessed the initial capture.

They then observed how the crows reacted when approached by someone wearing the caveman mask and compared it to the reaction prompted by a control mask – in this case, a mask depicting the face ...

They trapped, banded, and released wild crows (an upsetting experience for the crows, even though the crows weren't harmed) while wearing caveman masks. Researchers who weren't involved in the ...

1. Crows can memorize human faces. Wildlife biologists figured this out by conducting a simple experiment using rubber masks. A "caveman" mask, for example, designated a "dangerous" face while a ...

To test the birds’ recognition of faces separately from that of clothing, gait and other individual human characteristics, Marzluff and two students wore rubber masks. He designated a caveman ...