MARCH 



189 



The bluebird measures seven inches. In building the 

 nest, they choose by preference a bird house, a hole in a 

 tree, or some place that will afford the children sufficient 

 protection without too much exertion on their part. Their 

 eggs are pale blue, from four to six in number. 



They, too, belong to the Thrush family; but their 

 song is more like the Warblers'. 



Crow Blackbird : These are the largest of all the 



Crow Blackbird, or the Purple Crackle. 



