No! Of course not! Once you touch a birds nest to take one egg, your smell is all over. This might cause the mother to abandon the nest. Then, when the other eggs hatch, there will be no food source and they will all end up dying.
the birds got eaten
No unattended nest would keep the penguin's single precious egg warm; the birds hold them between their feet until they hatch (which is what limits them to one egg).
It will. I do this all the time egg swapping is what I call it.
Farmers used to leave one egg in the hen's nest to encourage her to have more eggs.
The duck laid one egg and then left in the nest.
nest
one time I heard that once you touch the egg the female won't warm the egg anymore, or if you touch the baby bird she will stop feeding the baby NC
in winter birds fly south so what side of the tree was the egg found? north, west, east or south?
One way the shell strength helps is by protecting the bird or animal from the mother sitting on the nest and from other siblings that hatch first and hop all over an egg that has not reached maturity.
No defenitely female birds will built the nest
Depends on what's going on with the birds. If they have eggs or babies, the reason is obvious. If no eggs/babies, some birds like to "hide out" and/or enjoy the comfort and security of enclosed places like a nesting box.
It decomposes or is eaten by other birds or insects. It contains useful minerals. Egg shells are very nutritious for plants. They decay and return minerals to the soil. Generally, the parent birds will push the shells out of their nest onto the ground. If the bird is one that nests on the ground, they just move away from the shells. The same thing happens to reptile eggs - snakes, turtles, alligators, etc. will lay their eggs in the ground.