NATURE-STUDY LESSONS. 41 



E. Its Eggs. 



15. {a) Observe the number, color and size of the eggs. 

 {b) Draw an egg and model one in clay. 



{c) Infer the advantage of the color of the eggs. 



16. (a) Describe the actions of the birds when their 



eggs are being disturbed by boys, bluebirds, 

 blackbirds or crows. 

 (J)) Imitate their cry at this time. 



17. {a) Which bird sits on the eggs until they are 



hatched ? 



(b) What makes the bird so inconspicuous when 



on the nest? 

 (<:) How long does it require to hatch the eggs ? 

 (d) Describe the conduct of the other bird when 



its mate is on the nest, and when the latter 



leaves it for food. 

 P. Its Young. 



18. When the young are hatched out, what becomes of 

 the egg-shells ? 



19. {a) Describe how the young are fed. 



{b) How are they kept warm and protected when 

 it rains? 



(c) How is the nest kept clean ? 



20. Describe the young bird — note the covering of 

 the body ; the size of the mouth and the appearance 

 of the eyes. 



21. On what are the young ones fed? 



22. How long is it before the young attempt to leave 

 the nest ? 



23. Describe their appearance on leaving the nest. 



24. Describe the attempts of the old birds to teach 

 their young ones to fly. 



