We have a pair of Sandhill Cranes that live in our pasture; the same pair each year I suspect, as I understand, they mate for life. Sandhills are super territorial birds; if ANYthing gets too close to them they start their delightful gobbling & shrieking. I've never had any guinea fowl because people say they are so noisy, but I suspect the cranes are about the same.
The cranes have now gone south for this year, but we do look forward to their noisy return. The cranes along with the Canada Geese, who are flying overhead by the thousands in their distinctive V-formations, honking encouragement to the rest.
There is no room for doubt... autumn has arrived.