Birds build nests to protect their eggs.
to keep the egg warm, and to protect it.
put bubblewrap around it
no there is a membrane to protect it
A hen does not learn how to lay an egg, she knows. Millions of years of evolution have hard wired an instinct into the bird not only how to lay an egg, but where to build a nest for it, and how to build the nest, its much like with human females and the passing of their eggs, hormones dictate the timing of ovulation, and affect the birds behaviour when the egg is due.
because the momma bird sits on top of it the whole time
(=^) bird in egg =^ bird not in egg(=eyes ^beak)
yes, because it has grown into a bird in the egg
No, it does not hurt when a bird lays an egg.
why do all birds build nest
how the feathers protect the bird
Build-A-Bird was created in 1986.
Well, when I tap my nestboxes they immediantly get out, unwilling to even attempt to protect their clutch from me. However, if you mean the sense of a male lovebird protecting his offspring, then yes. Lovebirds or any bird will think the egg is fertile even if it is infertile or a dummy egg. They usually reject the egg once they sat on it for a week or two.