Saw the weirdest thing! Cleo's udder was green! Had to ask Husband what was the joke,he said seriously that it wasn't. He used tattoo ink on her calf's nose to see if the calf was nursing. Apparently, he saw him nurse immediately after he did this! So the calf is nursing.
The point of doing this is that when we are not around and have concerns about a calf milk intake, this method will indicate what is happening. We made sure that the ink is safe for both cow and calf.