17 



Fig. 18. — Trolley food 

 shelf. (After Ladd.) 



trivance, a moving food shelf may be hung from a wire reach- 

 ing to some near-by tree where the birds may be fed at first, 

 and when they have become accustomed to this, the "trolley" 

 shelf may be moved nearer and nearer the 

 window shelf day by day, until they have 

 learned to feed there, when the use of the 

 trolley may be discontinued. If the ground 

 birds do not come to the shelf at first, they 

 may be fed on the ground near by, and 

 then tolled nearer and nearer the shelf 

 until they follow the tree birds to it. A 

 little bush or tree set upon the shelf and supplied with food 

 attached to the branches will give the arboreal species a chance 

 to display their natural feeding habits, while the ground birds 

 will feed mainly on the shelf. A food hopper may be provided, 

 as shown in Fig. 17. Such a hopper filled with seed will feed 

 it down as the birds want it, so long as it is kept clear of snow 

 and ice. 



The Windoiv Box. 



In some respects the covered shelf or window box is an im- 

 provement on the outdoor shelf. In it the food and the birds 

 are protected from storm and 

 wind, and it brings the birds 

 practically into the room. 

 Birds soon become accustomed 

 to it and frequent it in con- 

 siderable numbers. 



The Weathervane Food House. 



The weathervane food house 

 is the most perfect device yet 

 invented for outdoor feeding, 

 but it should have a hopper 

 built into the top that can be 



filled with seed. This hopper should be large enough to hold 

 a month's supply of seed, and should be made to "feed down" 

 as fast as the birds eat the food at the bottom. The weather- 

 vane food house swings with the wind and always keeps the 

 opening away from wind and storm. The food house shown in 



Fig. 19. — Window box. 



(From " How to Attract Wild Birds about the 



Home." By Niel Morrow Ladd.) 



