Green
the counting crows sung colour blind
the song is about how you can't see in color
There are some other colors of crows besides black, but don't look for anything bright and flashy. Use the links and sift through the 40 odd species to find out which ones have a bit of non-black coloring. Crows that are black are usually iridescent. That means if the light hits them correctly, one can see some cool color where it was black a moment before. Iridescence is an optical effect; the crows are black.
A congress of crows, or a murder of crows.
Green
Yes, crows have blood, just like all other animals. Blood is an essential component of their circulatory system, carrying nutrients and oxygen to their cells and removing waste products.
silver
Dirty Blonde
the counting crows sung colour blind
the song is about how you can't see in color
There are some other colors of crows besides black, but don't look for anything bright and flashy. Use the links and sift through the 40 odd species to find out which ones have a bit of non-black coloring. Crows that are black are usually iridescent. That means if the light hits them correctly, one can see some cool color where it was black a moment before. Iridescence is an optical effect; the crows are black.
greenish blue with black spots. Sometimes white, red, or brown.
A congress of crows, or a murder of crows.
pinkish green
A number of crows is called a "murder" of crows.
Blood is red.