38 ECOLOGY AND LIFE HISTORY OF THE COMMON FROG 



20 30 

 APRIL 



o 20 30 



MAY 



9 19 29 

 JUNE 



9 19 



JULY 



Fig. 13. Cat Hill Pond, 1948 



The collections, taken always at the same place, were remarkable for the 



contrasts in size. The large tadpoles probably came from some other place, 



never discovered, and departed again, as in other ponds. 



Bentley Heath Village 



1949 (Fig. 14). In 1948, spawn was laid, but it was eaten by moorhens 

 and, although a few tadpoles survived, none could be found after 20th 

 April. In 1949, however, 100 to 150 clumps were laid, in two lots, a 



