What Birds Do for Us 



enormous dividends from it in that unique and 

 happy manner which greatly increases the cash rev- 

 enues of the business. Perhaps the junior partners, 

 the fledglings, with appetites bigger than their 

 bodies (for many eat more than their weight of food 



"An Indigo Bunting mother does not hesitate to ram a 

 large grasshopper down her small baby's throat after 

 she has nipped off the wings" 



every twenty-four hours) , are of greater value than 

 the seniors. Even seed -eating birds, as we have 

 seen in a previous chapter, feed insects to their nest- 

 lings : an indigo bunting mother does not hesitate to 

 ram a very large grasshopper down her very small 

 baby's throat after she has nipped off the wings. 



PARTNERSHIPS IN NATURE 



Just as many insects have resorted to curious and 

 ingenious devices to avoid the birds' attention, so 



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