HOMES AND DOMESTIC HABITS 



265 



care of the young are the rule, and a high degree of devel- 

 opment in these habits is reached. All of us are familiar 

 with many different kinds of nests, from the few twigs 

 loosely put together hy the mourning-dove to the firm, 

 closely knit, wool or feather lined nest of the humming- 

 bird (Fig. 159), and the basket-like hanging nest of the 



FIG. 159. Nest and eggs of the Rufus humming-bird (Trochilus rufus). Photograph 

 by J. O. SNYDBB, Stanford University, California. 



