leave alone
they leave them to hatch alone
it left it to hatch alone
They left the eggs alone
Leave them alone. They will hatch out by themselves.
leave them in hope of hoping they will hatch
Leave them alone, let the mother do the work, and leave them in the SAME EXACT spot. they will hatch by themselves eventually. (This answer may not be true so ask your local pet store, or surf the web.)
yes
yes unless the eggs are eaten then no
They do not. The female takes care of the eggs till they hatch and then on the young ones are on their own. The parents have no part in taking care of them.They also leave their young alone...
Leave it there, chances are that if you leave it alone, the eggs will hatch, the parents leave, then the babies will learn to fly, and leave as well. Also, don't touch the eggs, because it is possible that if the parent doesn't recognize the scent of their eggs, then they will leave it.
Leave them alone. The bluebird will take of them.
They bury them in sand/soil and leave them to their desitny