Google Image Search: How to find PURPLE COW in image Search?

Google’s Image search is one of the main sources for our day to day image hunting. Google has improved their search by adding a feature. Now you can search for an image that contains certain colour.

Searching for [red bird] shows good results, but you can still find some unrelated images. What if you search for [bird] and restrict the results to red images? Here’s the URL:

http://images.google.com/images?q=bird&imgcolor=red
(you can replace “red” with “blue”, “green”, “teal”, “purple”, “yellow”, “orange”, “pink”, “white”, “gray”, “black” and “brown”)

I tried RED DOG, PINK CAT, PURPLE COW!!!!