Crow in garden

Hi, Im not sure where to get any other information on this so thought I would ask here! Over the weekend we started to leave food out for a crow who we saw in our back garden, it came a couple of times a day. Well this morning 'Cameron' was at the back door waiting for us, we fed him as usually but he didn't leave. That was 5 hours ago! He has been drinking water and stashing the food around the garden but hasn't flown off. Should I be concerned? My husband thought it was staying for the food, so I brushed up the leftovers (while Cameron watched) but as soon as I was back into the house, he hopped over and stood by the patio door looking at me! Im not bothered about him in the garden, just concerned that he hasn't left? Is this normal?