36 



FIRST LESSONS IN ZOOLOGY 



bluebird, wren, t^roundbird, catbird — any familiar kind 

 that can be found at work. 



In Chapter XV of this book, which is devoted to 

 suggestions for studying the Hfe of birds, further attention 

 is given to nesting and care of the young. See Chapters 

 XVII-XXI in Baskett's "The Story of the Birds," and 

 Chapter VI in Chapman's " Bird-Hfe." 



Fig. 19. — Oriole's nest with skeleton of bluejay suspended from it; the 

 bluejay probrdjly came to the nest to eat tlie eggs, became entangled 

 in tlie strings composing the nest, and died by hanging. (Photograph 

 by S. J. Hunter.) 



Homes of insects and spiders. — Tlie insects which 

 build the most elaborate homes and take the greatest 

 care of their young are the so-called social insects — the 

 communal ants, bees, and \\'asps. y\s a later chapter 

 (Chapter XXj in this book is entirely devoted to the 

 life-histor}/ and habits of these insects, «'e ma_\' omit an)' 

 accoimt of them here. But onl)- a few species of bees, 

 namely, the bumble-bees and the honey-bee, live in com- 



