the color blind thing might be the same as with horses. They cant see color. But many horses are un-nerved by white lines in the dirt or the yellow traffic lines on the road. Its not the color, but the fact that when light hits it the yellow or white spots, it reflects and becomes very bright. Also with things like small pot holes filled with water, most horses wont step in it becuse all they see is a black hole.
Some horses (like my mare) dont like Appaloosa horses. The combination of the white body/pink skin and the large black spots confuses them.
Perhaps its the same with fish, they react to the way light refracts of each others colors?
I'm not kidding, he thinks it's a competitor for his attention, and he climbs all over it when they're both out, and he starts biting it all over the casing, and he found the power button and, after I picked him up and put him down, he realized it got my attention and continued to bite it -_-
Hehe, little smarty pants. My bird didn't do anything like that, he just wanted to play with my bookmark when I read with him out. Then he'd throw it on the floor and look at it like "why'd you go down there". I want to take him out when I have my sorority established. I think he'd be in aw, but then again maybe not. He was only interested in my little boy once, now he wiggs out. I think it's more due to being aware of the dogs near by though.
I had a little budgie parrot named Johny and he got really good at mimicking my mother saying "Sarah, where's Charley" It got to the point my sister was answering him thinking she was talking to my mom.
Sarah is my sister and Charley is our little brother. This was back when we were under 13. :D