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Crows can recognize geometric regularity

(phys.org)
178 points wglb | 2 comments | 17 Apr 25 14:20 UTC | HN request time: 0.422s | source
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djmips ◴[21 Apr 25 01:10 UTC] No.43747742[source]▶
Kind of off topic but I just got back from the park and there is a public water bowl set out for dogs and a crow was manipulating something in the water - after a time my eyebrows went up as I realized the crow was softening some dried out discarded human food to make it easy to break up and eat!
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jonah ◴[21 Apr 25 03:40 UTC] No.43748340[source]▶
They started washing their food in my bird bath like that. I had to put a stop to it once they started soaking dead rodents and things like that. A) gross, B) they don't need soaking. (:
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hbbio ◴[21 Apr 25 04:17 UTC] No.43748463[source]▶
Crows soak all their food in our (sorry, their) swimming pool! Sadly, that includes rodents too. I wonder if it is because of the chlorine that could potentially "clean" the food, or if they want to wash out sand, etc.

Been careful not to yell or approach abruptly and they definitely learn to recognize our faces, since we can get pretty close to them now.

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1. bbarnett ◴[21 Apr 25 09:09 UTC] No.43749816[source]▶
Your second paragraph seems at odds with the perceived goals in the first.
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2. hbbio ◴[21 Apr 25 11:55 UTC] No.43750894[source]▶
Indeed, that's not clear... was trying to teach no rodents!