If you don’t know your exact location, try selecting a broader geographical area. For example, if you know you were in the town of Cape May, New Jersey, but don’t know the exact location of your sighting, enter your sighting at the town level. The information won’t be as useful as information provided from a more precise location, but it will still be meaningful to eBird biologists and fellow bird watchers.
If you don't know your exact distance traveled you can measure it using a suite of online map-based tools. Try runningmap.com or http://www.gmap-pedometer.com/ for measuring distance.
If you don't know the exact area you can measure it by drawing a polygon around it using the online tool called Google Planimeter.
If you are reporting only the highlights of the species you observed, answer “No” in the box that asks, “Are you reporting a complete checklist of the birds you saw/heard?” You can still enter the numbers of individuals of each species you did identify, but we’ll know that you aren’t reporting the total number of species.
If you don’t know the exact number of individuals for each species, still answer “Yes” in the box that asks, “Are you reporting all the birds you observed?” You can enter numbers for each species if you have them, or "X" to indicate that a species was simply present.
If you can’t provide effort information (how far you walked, how long you were recording birds) you can enter your observations as “Incidental Sightings”.