It quaks like a duck

Not sure if this is a Muscovy duck - they are not shy at all took this while he/she walked by me . I discovered this parking lot which is occupied in the evening with a whole variety of birds such as storks, ibis, heron and so on. Thought I bring my camera and snap some blips .... Now I know why they all gather in the evening in this weird place .... A fish store owner feeds them at night- I am not to keen on that since he gives them bread instead of letting them look for their food. Not only that the parking lot is pretty dangerous with cars flying by. There are about over 50 birds that show up ...