We too have a large backyard with 3 hens, 1 roo and 1 very sweet yet spoiled Jack Russell. And of course EVERYONE congregates on the deck to peek in the sliding glass door. Atleast the dog knows to leave his presents in the grass. Even before we got the chickens, I'd go on poop patrol (scoop it with shovel) cause I don't like to have to dance around piles. Now I have lots more piles to scoop. What ever was I thinkin??? Once or twice a week I go over the yard and scoop. I only use the chicken poo for fertilizer, so that gets dumped in either the garden compost or into their pen (deep litter of hay stirred up weekly). The dogs poo is either put in plastic bag for the garbage man or dumped in an obscure corner of the yard.
And the difference is...dog=tootsie rolls, chicken=Hershey's kisses sprinkled with powder sugar. If I can't tell for some reason it's just dumped.
It usually only takes about 1/2 hour if that. As for the deck I try to scoop that too or is hosed off. (This also gives me a chance to check for any problems)
Personally I don't care what others think, but I don't like poo being tracked in the house and have to smell it! Then find and clean off the guilty shoes, shampoo the carpet, mop the floor, etc, etc, etc. Just seems easier to scoop.