thanks for your reply. The duck flew in regularly before I fed her. I only fed her 3 times so far but she (or he) comes back. i think they just enjoy the swimming pool and the quiet atmosphere. At times they came together but lately only once came.
thanks for your feedback with the food. I try not to feed her regularly but at times I just can't assist. She tends to sleep for a while in the corner of the swimming pool, rests along side the pool and after roughly 2 hours she is gone again to come back the next day.