Sounds like you have it sussed with the feeding. The head thing of Oliver is just showing insecurity, but he´ll get there. He´s a baby, without his parents, so he´s a bit wary.Wow! that is really exciting! I am not sure that I could keep up with so many animals. I have my 10yr old son (which I homeschool), 6 indoor dogs, a cat, 7 ducks and the 2 geese. Some days I feel very overwhelmed with all of my responsibilities. I am inspired by your posts because you raise your geese so well and still have time to reply to all of my questions! I hope the eggs under the pied parents hatch! I cant wait to see pics of them!.
Holding the pot seems to be working good. I am going to get another one so i can hold two. I let them out of their night time run and then they follow me quacking (the cayuga mixes are louder than i expected) and Oliver chatters gosling chatter. He does head snake at me while following me for food. I thought it was more of a demand for food, but could it be that he is still scared?
After I give everyone a little nibble in the bucket (pot), I spread the food out on the ground so they can graze on it. So, I make them come to me before I will feed them. So far it has helped a lot!
Regards the birds, I have so many birds here. I have 3 chickens with little chicks, 8 of which hatched yesterday, so sweet. There are two more sitting on eggs, the various geese on various nests, and ducklings with their moms to feed too, so it´s always busy here. I also teach English, and have 7 dogs and 5 cats. It gets crazy this time of year because of the goslings, but the rest of the time is calmer. My youngest is still at homw, but is 17 so all I have to do with him is feed him!

I literally run around quite a bit trying to get them all fed and watered before I work. I get a good bit of exercise, too, as we have them spread around over 2 acres.

I had the three families of geese with their goslings out free today, and from time to time all the goslings mix together, they look great as one flock. Then they divide off again into their little groups.
I´ll try to get some new pics today, the weather´s improved.