Mine love to play with things. They both put rocks in the pool. Pretty much any thing that could be a toy they will play with. Shovels, pots, twigs, rocks, fencing, rope, etc. As long as they can get it in their mouth they will play with it. Both of mine also play with nest materials. When the female goose sets on my ducks eggs and the gander sees her playing mommy he then will also play with nest materials. I have watched him pick up a piece of hay set it at his feet take a step and pick up another piece only to lay that one at his feet, then repeating. I have watched him go about ten feet, with each step placing another one at his feet. He coos softly as he does it stopping now and then to look at his girl then back to placing another piece of straw at his feet and taking a step. The female watches him adoringly as she sit on the duck eggs. Its really quite sweet. And yes I am sure of their genders.