... of laying their eggs in the ground that is still good enough for the petrels, penguins, kingfishers, and many other kinds. Protection of the eggs from rain, frost, and natural enemies suggests ... habit of seeking their insect food only in the gloaming which makes nightjars among the most difficult of birds to study from life, and all accounts of their feeding habits must therefore be ... close, if only for the sake of the other eggs of her own laying. Once the ugly nestling is hatched, there comes swift awakening. Yet there is no thought of reprisal or desertion. It looks rather...