Geese like to nest in places they feel hidden and safe. We made little Quonset hut shaped duplexes to encourage our geese to make their nests inside the pens that we close them up in at night. Before we made these duplexes our geese would find their own nest sites and if they started setting before we found the nests, they could be killed by predators. These nests have been used by ducks, chickens and peafowl as well as geese. Below is a pic. of Lilly (an African goose) and another pic. one of our Australian swans in the nest. The cost of these nest boxes are just the cost of screws. (unless you have some reclaimed screws) These duplexes can be moved by one person if necessary and can be painted if desired.

Step 1: Materials:

1 reclaimed 8 foot piece of tin
screws
4 pieces of scrap lumber 2 feet long each
1 piece of scrap flashing (for divider) 2 ft x 2 ft

Step 2:

Cut the tin into two equal length pieces then screw them together with the edges overlapping.

Step 3:

Screw the tin to the ends of 3 of the 2 ft. pieces of wood. One piece of wood at each end of the tin and one piece in the middle. Screw the other edge of your tin to the opposite ends of the wood forming an arch.

Step 4:

To make the dividing wall, either cut the piece of flashing to fit the shape of the arch, or, as we did, bend the corners down to make it fit. Attach the divider ti the center piece of wood, then screw the remaining piece of wood to the wall so that one end touches the roof. Put screws through the roof into the wood so that the wall can't fall over.
The divider keeps the geese from fighting, it provides two nest boxes and gives a sense of security.