Goose Appears Sick

[Kirk]

I have a pair of Buff Pomeranian geese that are about 3 months old. I've never had geese before but they are fully feathered and have been basically free ranging with chickens and a few turkeys. In fact the turkeys think the geese are their parents as they follow them everywhere.
The larger of the 2 geese (I assume it is the male) has just started being lethargic and will stand in their plastic pool basically motionless for long periods. He then will just sit in the shade with his neck somewhat drawn in.
I'm concerned as he used to be very active and outgoing. Any thoughts on his behavior?

[Angela]

Without knowing more, my first thought: It's the heat. Just make sure that you provide LOTS of cool, fresh water....and shade.

Angela