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Bird - Lore 



3. A brood of House Wrens eat about 1,000 insects in i day. How many would be 

 eaten in i hour, reckoning the feeding period from 5 a.m. to 6.30 p.m.? 



4. The Purple Martin has been observed to feed its young 100 to 300 times a day. 

 Reckoning from 4.30 a.m. to 7 p.m., how often would the young birds be fed? 



Sums Taken from a Table of the Eating Capacity of Adult Birds 



1. If 6 Robins eat 265 Rocky Mountain locusts at a single feeding, how many can i 

 Robin eat? 



2. I Nighthawk has been known to eat 500 mosquitos at a feeding. If it fed only 

 three times a day, how many mosquitos would it eat in a week? 



3. Two Scarlet Tanagers have been observed to eat 35 small gipsy moth caterpillars 

 a minute, for 18 minutes. How many did they eat? 



4. One Bobwhite ate 1,700 weed seeds at a feeding, while another ate 5,000 pigeon- 

 grass seeds. How many feedings would it take to destro}'^ 50,000 of these weed seeds? 



A section of the Junior Audubon class, taken just previous to locating bird-boxes 

 in April. During the summer we took many morning tramps and made the acquaint- 

 ance of a number of our bird friends. — Mrs. Cora D. Berlin, Wimbledon, North Dakota. 



See "A Bird-Study Class in North Dakota," Bird-Lore, Vol. XVI, No. 2, p. 135. 



Large as these figures seem, they show but a fraction of the ceaseless activ- 

 ity of life around us. There are not figures enough to denote the countless num- 

 bers of insects which are devouring equally countless numbers of plants and 

 other forms of vegetable life. Looking at the clear, still air above us, or the 

 ceaselessly moving ocean which is ever beyond us, we cannot even imagine the 

 life which is contained in them. There is no part of nature-study more delight- 

 ful than simply finding out living things. The kinds of life, the amazing variety 



