Deerstalker243

Feeding my flight pond. Hi there I have just recently put down 300 mallard on my release pond. I have had problems in the past with feeding the ducks on the water every day since they were 6 week olds and comeing up to shooting time they won't leave the ponds through the day and It takes alot of effort to get them off. I'm thinking of changing to feeding from hoppers to minimise me being around them too much. If anyone has any tips or pointers it would be much appreciated. Thanks in advance