"Cows can get by without food for quite long periods," said one man.
"It's more of a worry that she will fall and break her leg and then she would have to be shot."
The tide was coming in fast at 11am and high tide was expected at around 4pm today.
"Nothing can be done until the tide goes out now because there is no way to get to her from above,'" said one local.
The cow was situated well above the tideline and the terrain below her was unstable but one local said a trail of hay spread along the safest route down might lead to a solution.
"She has managed to get down a bit further than when I first saw her yesterday."
Readers made suggestions on social media on how to rescue the cow:
"Hip clamps and a chopper will do the job in 5 min."