An important part of the Maine Bird Atlas is knowing which species are breeding or wintering in each atlas block. When you submit a checklist in eBird, you are either placing a pin on a map or, using the app, your location maybe automatically selected. It is important to review your locations to make sure birds are being reported in the blocks you actually saw them, not accidentally slipping into a nearby block because you were so close to the boundary. Here are a few tips to keep birds in their blocks: