I'd say the one doing the most hissing or all of it is the gander. My youngest gander loves to hiss. My oldest just loves to bite.
Did they stay the night and if yes where did they stay?
They most likely won't stay on the ground when it starts to get dusk. Do you have a spare shed? I am not sure I'd put them with the chickens my geese would probably decimate my chickens if they had to sleep with them.You may be able to lure them into a building with food but make sure to put...