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Originally written by My Friend:

"Primary" color, as far as vision goes, is just the types of rods in your eyes. We can see red, green, and blue-purple. All other colors are seen by processing the varying signals from those detectors. Birds are able to detect another part of the spectrum (ultraviolet, I believe), so they have four primary colors.

You could call it C-Y-M-UV if you wanted.

—Alorael, who doesn't feel any need to respect pidgeons for superior eyesight. Until they start making UV art, they're still airborne rats.

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Originally written by andrew miller:

As an update on the pigeons on my balcony, we discovered that the two adults actually decided to start a whole other nest on our balcony while simultaneously raising the chick in their original nest. My fiancee, Di, and I decided we would suffer this no longer - one miracle of life is enough, and the weather is nice enough now that we want our balcony back - so Di, in an admirably cold-blooded fashion, went out to the balcony, scared the mother bird away from her nest (pigeons are definitely flighty - ha ha ha), snatched up the two new eggs (they were warm to the touch through the plastic bag she used), and we threw them away. The mother bird all the while was flying back and forth by the balcony while she was doing this. We then destroyed the nest, and made other likely nesting spots uninhabitable.

I have to say that I likely wouldn't have been able to do this myself, on account of the guilt - the mother pigeon was most distressed. Still though, nature is a cruel mistress, right? And they aren't paying rent...

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