3l8 MAINK AGRICUI<TURAT, EXPERIMENT STATION. I913. 



from the gizzard was .301 grams. That is. the loss was .3745 

 grams or 55.44 per cent. 



It thus seems evident that birds possess a considerable indi- 

 viduality in regard to the tendency to swallow pieces of bright 



Fig. 150. Leg bands and snips from gizzard of B. P. R. 



metal, since with equal opportunity only two of the seven 

 birds examined had swallowed leg bands. However, in a care- 

 ful search of the yards where the rebanding had been completed 

 several weeks before, a single snip and very few first bands were 

 found. While it is possible that some of them were completely 

 buried in the dirt, the soil in these yards is very hard and it is 

 probable that most of them had been eaten by the chicks. 



