This is the weird Ghost Shop guy's quest. He says that once you get a 1000 points on your card, you'll be a happy man. Each Big Poe is worth 100 points, and can be found only in Hyrule Field on horseback. Some are harder than others, and sometimes you may have to ride through these locations at different angles a few times so you can get your shots off to off them. You can walk around Hyrule Field and find the locations definitely, but the Poe you encounter on foot will not be Big Poe and will not earn you points.
1. At the sign from Hyrule Castle directing you to Lon Lon Ranch.
2. Near the lone tree just outside of the entrance to Lon Lon Ranch.
3. Exit Hyrule Castle and go to the right near the stream, where all of the black bushes are.
4. Exit Kakariko Village and go near the ledge to the right.
5. The Place where the stone wall turns. Go to the left of Lon Lon Ranch if coming from Hyrule Castle.
6. The boulder where the road splits, between Lon Lon Ranch and the Lost Woods.
7. At a patch of grass along the path from location 6. Pass the boulder going straight from Lost Woods. It is between the lone green tree and the small grove.
8. In the grove of trees described in location 7 but slightly to the right exiting Lake Hylia.
9. The place where the road splits outside of the entrance to Gerudo Valley.
10. The only tree near the entrance to Gerudo Valley and below the ledge.
