Recently, in Costa Rica, I was on a tour with a naturalist guide. He told our group that, at one time, hunters shot a lot of birds. Now, generations later, the descendants of those birds still panic when they hear a car door slam. The guide said that this fear was hereditary - perhaps he meant it was handed down from generation to generation by instruction, though he attributed it to DNA.
Great article! No doubt you have seen Nova PBS' Do Birds Remember Faces (masks with crows, etc) https://www.pbs.org/video/do-birds-remember-faces-ewrufw/?continuousplayautoplay=true study done at UW - looks like one of the masks you're showing here. Also Nova PBS' Bird Brain. It's fabulous about how birds use tools and much more - here's the link https://www.pbs.org/video/bird-brain-xgnj3x/
Recently, in Costa Rica, I was on a tour with a naturalist guide. He told our group that, at one time, hunters shot a lot of birds. Now, generations later, the descendants of those birds still panic when they hear a car door slam. The guide said that this fear was hereditary - perhaps he meant it was handed down from generation to generation by instruction, though he attributed it to DNA.
For the record, only crows would consider Dick Cheney neutral.