In this case, as with the supposed case of the cuckoo, I can see no difficulty in natural selection making an occasional habit permanent, if of advantage to the species, and if the insect whose nest and stored food are thus feloniously appropriated, be not thus exterminated.
When the old nest is found inconvenient, and they have to migrate, it is the slaves which determine the migration, and actually carry their masters in their jaws.
Nevertheless the bird was determined to save him if she could, and by one last mighty effort she propelled the nest against the rock.
Then at last he understood, and clutched the nest and waved his thanks to the bird as she fluttered overhead.
If," said he, "a finch's nest is placed on the Serpentine it fills and breaks to pieces, but a thrush's nest is still as dry as the cup of a swan's back.
Solomon explained hastily that what he meant was not one of the cumbrous boats that humans use; the proposed boat was to be simply a thrush's nest large enough to hold Peter.
He informed me that the number of eggs in the nest
of the petise is considerably less than in that of the other kind, namely, not more than fifteen on an average, but he asserted that more than one female deposited them.
Ay, the old Madman has got the best collection in the house, out and out," said Tom; and then Martin, warming with unaccustomed good cheer and the chance of a convert, launched out into a proposed bird-nesting campaign, betraying all manner of important secrets--a golden-crested wren's nest
near Butlin's Mound, a moor-hen who was sitting on nine eggs in a pond down the Barby road, and a kingfisher's nest
in a corner of the old canal above Brownsover Mill.
Here he gazed at the Scarecrow; who crawled to the edge of the nest
and looked over.
I was somewhat older than during the nest
days, but still helpless.
Goody Tiptoes was busy pushing moss under the thatch--"The nest
is so snug, we shall be sound asleep all winter.
Happily, however, during that spring, they never, but once, got anything but empty nests
, or eggs--being too impatient to leave them till the birds were hatched; that once, Tom, who had been with his uncle into the neighbouring plantation, came running in high glee into the garden, with a brood of little callow nestlings in his hands.