delving, making holes by digging; working hard.
demonstration, a show.
distinguished, notable, unusually fine.
distressed, troubled.
entice, coax, persuade.
evidently, plainly, clearly.
fetch, go and bring back.
fledge, (a bird) to reach the age when its feathers are grown, so that it can fly; to care for a bird until it reaches that age.
fledgling, young bird, just out of the nest.
forage, seek for food.