Apparently there´s a type of lawn grass that´s not good for them. Often native-type grasses that grow wild are juicier than lawn grass. Mine love broad-bladed grasses and the seed-heads on them. They´re creeping grasses, so have fairly short blades, but they´re wide.That's why I want to set up a garden just for them, they do eat the grass some but don't really care for it. I don't know if it's the wrong kind of grass or what.. Maybe Texas heat makes the grass to tough for them, it's already 95 degrees here and climbing. Whatever the reason, they go straight for my flower and herb garden and I can't keep them out. The big veggie garden is next door at my moms so they can't get to that. I don't mind a nibble here or there but when they eat a whole bed of marigold down to roots and strip a side completely off my parsley, when they have a whole yard to graze, there has to be something wrong with the grass in my yard. I may end up reseeding my grass for something they like, but once again don't know what grass is good for geese. So I was gonna make them their very own garden till I figured it all out. I am very concerned about their health and want them to thrive.