# data[].attributes.body
When there was less water the beaks got bigger to help them getting water from an area more easily

# data[].attributes.body
The beak sizes increased when the rainfall decreased to 20mm of rain in 1977

# data[].attributes.body
Since there was less soft smaller seeds (portulaca) where gone (0 per meters square)  so the birds got bigger beaks to help open and eat the harder jagged seeds (Tribulus) which were more common (5 per meter square) causing only the bigger beaked birds to reproduce.

# data[].attributes.body
When the Porticala seeds decreased their offsprings beaks got larger.

# data[].attributes.body
The decrease in birds with small beaks allowed the bigger beaked birds to repopulate.

# data[].attributes.body
1.  The beaks size increased because when the birds population went from 751-90 birds.