Probably one of the most easily recognised bird eggs is the light blue American robin egg. Fallen eggs are not an uncommon occurrence as wind, older siblings and predators can all send eggs out of the nest. Because robin eggs do not have far to fall, they are often undamaged when found. The best parents for the robin eggs are the robin parents themselves. Therefore, to give the eggs the best chance of survival is to not try to hatch them yourself, but give them back to the robin parents.
Place the eggs in a small box lined with paper towels or a T-shirt for safe keeping until you can find the nest. Do not handle the egg more than is necessary. Too much shaking will kill the chick inside.
Look for the robin's nest. The egg doesn't fall far from the nest so look directly up into a tree or to a nearby bush. Robin nests are typically on a lower limb of the tree or close to the ground in a bush and made mostly of grass or fine twigs.
Place the eggs back into the nest if the nest is within reach with a ladder. Then leave the area quickly so that the parents do not feel threatened and abandon the nest.
Take the eggs to a local wildlife rehabilitation centre if you cannot find the nest. It is against federal law to keep the eggs without a proper permit, and the best chance the chicks will have is with those experienced with hatching and raising robins.
The eggs may have been kicked out of the nest for a reason. The parent robins often know if the egg is not viable.