I have 3 African Geese (purebred) 2 buff, 1 white. They are very easy to keep, friendly, a bit noisy. Here's Max (the gander) in front, with Mocha and Marshmallow behind. This was about 6 months ago, they're a bit bigger now. They do have tender feet so you need to keep their environment free of anything they can injure their feet on.
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We do have a road base gravel driveway, and the geese used to walk the driveway with me, and yes it does harm their feet, so they stay 'home' now.
Your birds are beautiful !