Ducks! Eggs! Quack!

You know our house is not Victorian -- it was built in 2002-03 -- but right next door sits this 1910-or-so Painted Lady. It used to be white and pink, but our neighbor, Ron, has been repainting it himself very slowly ever since I was born. The back wall is still the old colors.
Anyway, more to the point, Ron (and his wife Pat) keep ducks!! We hear them quacking every day at some time or another, and I like to quack back. I can't remember what breed they are (any clue, veterinarian Papaw?), but they are tall and thin and not one of them is yellow. The brown and white one is Louella, the black one is Jezebel and the brown one is Dootsea.
They lay eggs that are light blue-green. I know this because last month we got to duck-sit while our neighbors went on vacation, and that meant we got to find and keep the eggs!

They weren't hard to find. The ducks lay their eggs inside their little house that has a fenced-in run attached. See, there I am poking my head in the door and Pat is holding the eggs. I really wanted to crawl right in the house with the ducks, but when I got too close (like this), they got all flustered and Mom said I couldn't go in, that the house was their space. We lifted the roof off the house to collect the eggs, and only did that when the ducks were on the other side of the yard, eating.

Mostly they ate grain -- and bugs and slugs from the yard -- but here Ron is feeding them chopped-up chard.
I don't mean to be rude, but won't they go away again soon?? I rather relish the role of duck-sitting. I speak the language and all: Quack, quack!