[harry]

are adult muscovys ok with adult geese and their goslings

[goosepimple]

Our geese attacked the first muscovy female who had ducklings, so we penned her.  Once they had goslings of their own to deal with we penned the geese with their young until they were about 1 month old and the goslings were fairly big by then.  A gander could kill a muscovy female and would certainly kill her young.  I wouldn't pen them in a restricted area, ours free range over a very large area, plenty room to ignore each other.  Ganders get very very aggressive when his ladies are laying but once they're sitting on the eggs he backs down. 

[harry]

i suppose i could smuggle in some day old muscovys under the goose when the goslings hatch... it works with nearly everything else if done at night.  i had one chicken panicing around a pond when a duckling she hatched went for a swim

[goosepimple]

Harry - you should do some reading, at least google before you go any further.